Update dependency aiohttp to v3.9.2 [SECURITY] #98

renovate · 2023-07-20T17:25:21Z

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
aiohttp	`==3.8.3` -> `==3.9.2`

GitHub Vulnerability Alerts

CVE-2023-37276

Impact

aiohttp v3.8.4 and earlier are bundled with llhttp v6.0.6 which is vulnerable to CVE-2023-30589. The vulnerable code is used by aiohttp for its HTTP request parser when available which is the default case when installing from a wheel.

This vulnerability only affects users of aiohttp as an HTTP server (ie aiohttp.Application), you are not affected by this vulnerability if you are using aiohttp as an HTTP client library (ie aiohttp.ClientSession).

Reproducer

from aiohttp import web

async def example(request: web.Request):
    headers = dict(request.headers)
    body = await request.content.read()
    return web.Response(text=f"headers: {headers} body: {body}")

app = web.Application()
app.add_routes([web.post('/', example)])
web.run_app(app)

Sending a crafted HTTP request will cause the server to misinterpret one of the HTTP header values leading to HTTP request smuggling.

$ printf "POST / HTTP/1.1\r\nHost: localhost:8080\r\nX-Abc: \rxTransfer-Encoding: chunked\r\n\r\n1\r\nA\r\n0\r\n\r\n" \
  | nc localhost 8080

Expected output:
  headers: {'Host': 'localhost:8080', 'X-Abc': '\rxTransfer-Encoding: chunked'} body: b''

Actual output (note that 'Transfer-Encoding: chunked' is an HTTP header now and body is treated differently)
  headers: {'Host': 'localhost:8080', 'X-Abc': '', 'Transfer-Encoding': 'chunked'} body: b'A'

Patches

Upgrade to the latest version of aiohttp to resolve this vulnerability. It has been fixed in v3.8.5: pip install aiohttp >= 3.8.5

Workarounds

If you aren't able to upgrade you can reinstall aiohttp using AIOHTTP_NO_EXTENSIONS=1 as an environment variable to disable the llhttp HTTP request parser implementation. The pure Python implementation isn't vulnerable to request smuggling:

$ python -m pip uninstall --yes aiohttp
$ AIOHTTP_NO_EXTENSIONS=1 python -m pip install --no-binary=aiohttp --no-cache aiohttp

References

CVE-2023-47627

Summary

The HTTP parser in AIOHTTP has numerous problems with header parsing, which could lead to request smuggling.
This parser is only used when AIOHTTP_NO_EXTENSIONS is enabled (or not using a prebuilt wheel).

Details

Bug 1: Bad parsing of `Content-Length` values

Description

RFC 9110 says this:

Content-Length = 1*DIGIT

AIOHTTP does not enforce this rule, presumably because of an incorrect usage of the builtin int constructor. Because the int constructor accepts + and - prefixes, and digit-separating underscores, using int to parse CL values leads AIOHTTP to significant misinterpretation.

Examples

GET / HTTP/1.1\r\n
Content-Length: -0\r\n
\r\n
X

GET / HTTP/1.1\r\n
Content-Length: +0_1\r\n
\r\n
X

Suggested action

Verify that a Content-Length value consists only of ASCII digits before parsing, as the standard requires.

Bug 2: Improper handling of NUL, CR, and LF in header values

Description

RFC 9110 says this:

Field values containing CR, LF, or NUL characters are invalid and dangerous, due to the varying ways that implementations might parse and interpret those characters; a recipient of CR, LF, or NUL within a field value MUST either reject the message or replace each of those characters with SP before further processing or forwarding of that message.

AIOHTTP's HTTP parser does not enforce this rule, and will happily process header values containing these three forbidden characters without replacing them with SP.

Examples

GET / HTTP/1.1\r\n
Header: v\x00alue\r\n
\r\n

GET / HTTP/1.1\r\n
Header: v\ralue\r\n
\r\n

GET / HTTP/1.1\r\n
Header: v\nalue\r\n
\r\n

Suggested action

Reject all messages with NUL, CR, or LF in a header value. The translation to space thing, while technically allowed, does not seem like a good idea to me.

Bug 3: Improper stripping of whitespace before colon in HTTP headers

Description

RFC 9112 says this:

No whitespace is allowed between the field name and colon. In the past, differences in the handling of such whitespace have led to security vulnerabilities in request routing and response handling. A server MUST reject, with a response status code of 400 (Bad Request), any received request message that contains whitespace between a header field name and colon.

AIOHTTP does not enforce this rule, and will simply strip any whitespace before the colon in an HTTP header.

Example

GET / HTTP/1.1\r\n
Content-Length : 1\r\n
\r\n
X

Suggested action

Reject all messages with whitespace before a colon in a header field, as the standard requires.

PoC

Example requests are embedded in the previous section. To reproduce these bugs, start an AIOHTTP server without llhttp (i.e. AIOHTTP_NO_EXTENSIONS=1) and send the requests given in the previous section. (e.g. by printfing into nc)

Impact

Each of these bugs can be used for request smuggling.

GHSA-pjjw-qhg8-p2p9

Summary

llhttp 8.1.1 is vulnerable to two request smuggling vulnerabilities.
Details have not been disclosed yet, so refer to llhttp for future information.
The issue is resolved by using llhttp 9+ (which is included in aiohttp 3.8.6+).

CVE-2023-49082

Summary

Improper validation makes it possible for an attacker to modify the HTTP request (e.g. insert a new header) or even create a new HTTP request if the attacker controls the HTTP method.

Details

The vulnerability occurs only if the attacker can control the HTTP method (GET, POST etc.) of the request.

Previous releases performed no validation on the provided value. If an attacker controls the HTTP method it will be used as is and can lead to HTTP request smuggling.

PoC

A minimal example can be found here:
https://gist.github.com/jnovikov/7f411ae9fe6a9a7804cf162a3bdbb44b

Impact

If the attacker can control the HTTP version of the request it will be able to modify the request (request smuggling).

Workaround

If unable to upgrade and using user-provided values for the request method, perform manual validation of the user value (e.g. by restricting it to a few known values like GET, POST etc.).

Patch: https://github.com/aio-libs/aiohttp/pull/7806/files

CVE-2023-49081

Summary

Improper validation make it possible for an attacker to modify the HTTP request (e.g. to insert a new header) or even create a new HTTP request if the attacker controls the HTTP version.

Details

The vulnerability only occurs if the attacker can control the HTTP version of the request (including its type).
For example if an unvalidated JSON value is used as a version and the attacker is then able to pass an array as the version parameter.
Furthermore, the vulnerability only occurs when the Connection header is passed to the headers parameter.

At this point, the library will use the parsed value to create the request. If a list is passed, then it bypasses validation and it is possible to perform CRLF injection.

PoC

The POC below shows an example of providing an unvalidated array as a version:
https://gist.github.com/jnovikov/184afb593d9c2114d77f508e0ccd508e

Impact

CRLF injection leading to Request Smuggling.

Workaround

If these specific conditions are met and you are unable to upgrade, then validate the user input to the version parameter to ensure it is a str.

Patch: https://github.com/aio-libs/aiohttp/pull/7835/files

CVE-2024-23829

Summary

Security-sensitive parts of the Python HTTP parser retained minor differences in allowable character sets, that must trigger error handling to robustly match frame boundaries of proxies in order to protect against injection of additional requests. Additionally, validation could trigger exceptions that were not handled consistently with processing of other malformed input.

Details

These problems are rooted in pattern matching protocol elements, previously improved by PR #3235 and GHSA-gfw2-4jvh-wgfg:

The expression HTTP/(\d).(\d) lacked another backslash to clarify that the separator should be a literal dot, not just any Unicode code point (result: HTTP/(\d)\.(\d)).
The HTTP version was permitting Unicode digits, where only ASCII digits are standards-compliant.
Distinct regular expressions for validating HTTP Method and Header field names were used - though both should (at least) apply the common restrictions of rfc9110 token.

PoC

GET / HTTP/1ö1
GET / HTTP/1.𝟙
GET/: HTTP/1.1
Content-Encoding?: chunked

Impact

Primarily concerns running an aiohttp server without llhttp:

behind a proxy: Being more lenient than internet standards require could, depending on deployment environment, assist in request smuggling.
directly accessible or exposed behind proxies relaying malformed input: the unhandled exception could cause excessive resource consumption on the application server and/or its logging facilities.

Patch: https://github.com/aio-libs/aiohttp/pull/8074/files

CVE-2024-23334

Summary

Improperly configuring static resource resolution in aiohttp when used as a web server can result in the unauthorized reading of arbitrary files on the system.

Details

When using aiohttp as a web server and configuring static routes, it is necessary to specify the root path for static files. Additionally, the option 'follow_symlinks' can be used to determine whether to follow symbolic links outside the static root directory. When 'follow_symlinks' is set to True, there is no validation to check if a given file path is within the root directory.This can lead to directory traversal vulnerabilities, resulting in unauthorized access to arbitrary files on the system, even when symlinks are not present.

i.e. An application is only vulnerable with setup code like:

app.router.add_routes([
    web.static("/static", "static/", follow_symlinks=True),  # Remove follow_symlinks to avoid the vulnerability
])

Impact

This is a directory traversal vulnerability with CWE ID 22. When using aiohttp as a web server and enabling static resource resolution with follow_symlinks set to True, it can lead to this vulnerability. This vulnerability has been present since the introduction of the follow_symlinks parameter.

Workaround

Even if upgrading to a patched version of aiohttp, we recommend following these steps regardless.

If using follow_symlinks=True outside of a restricted local development environment, disable the option immediately. This option is NOT needed to follow symlinks which point to a location within the static root directory, it is only intended to allow a symlink to break out of the static directory. Even with this CVE fixed, there is still a substantial risk of misconfiguration when using this option on a server that accepts requests from remote users.

Additionally, aiohttp has always recommended using a reverse proxy server (such as nginx) to handle static resources and not to use these static resources in aiohttp for production environments. Doing so also protects against this vulnerability, and is why we expect the number of affected users to be very low.

Patch: https://github.com/aio-libs/aiohttp/pull/8079/files

Release Notes

aio-libs/aiohttp (aiohttp)

`v3.9.2`: 3.9.2

Compare Source

Bug fixes

Fixed server-side websocket connection leak.

Related issues and pull requests on GitHub:
#7978.
Fixed web.FileResponse doing blocking I/O in the event loop.

Related issues and pull requests on GitHub:
#8012.
Fixed double compress when compression enabled and compressed file exists in server file responses.

Related issues and pull requests on GitHub:
#8014.
Added runtime type check for ClientSession timeout parameter.

Related issues and pull requests on GitHub:
#8021.
Fixed an unhandled exception in the Python HTTP parser on header lines starting with a colon -- by :user:pajod.

Invalid request lines with anything but a dot between the HTTP major and minor version are now rejected.
Invalid header field names containing question mark or slash are now rejected.
Such requests are incompatible with :rfc:9110#section-5.6.2 and are not known to be of any legitimate use.

Related issues and pull requests on GitHub:
#8074.
Improved validation of paths for static resources requests to the server -- by :user:bdraco.

Related issues and pull requests on GitHub:
#8079.

Features

Added support for passing :py:data:True to ssl parameter in ClientSession while
deprecating :py:data:None -- by :user:xiangyan99.

Related issues and pull requests on GitHub:
#7698.

Breaking changes

Fixed an unhandled exception in the Python HTTP parser on header lines starting with a colon -- by :user:pajod.

Invalid request lines with anything but a dot between the HTTP major and minor version are now rejected.
Invalid header field names containing question mark or slash are now rejected.
Such requests are incompatible with :rfc:9110#section-5.6.2 and are not known to be of any legitimate use.

Related issues and pull requests on GitHub:
#8074.

Improved documentation

Fixed examples of fallback_charset_resolver function in the :doc:client_advanced document. -- by :user:henry0312.

Related issues and pull requests on GitHub:
#7995.
The Sphinx setup was updated to avoid showing the empty
changelog draft section in the tagged release documentation
builds on Read The Docs -- by :user:webknjaz.

Related issues and pull requests on GitHub:
#8067.

Packaging updates and notes for downstreams

The changelog categorization was made clearer. The
contributors can now mark their fragment files more
accurately -- by :user:webknjaz.

The new category tags are:
```
* ``bugfix``

* ``feature``

* ``deprecation``

* ``breaking`` (previously, ``removal``)

* ``doc``

* ``packaging``

* ``contrib``

* ``misc``
```
Related issues and pull requests on GitHub:
#8066.

Contributor-facing changes

Updated :ref:contributing/Tests coverage <aiohttp-contributing> section to show how we use codecov -- by :user:Dreamsorcerer.

Related issues and pull requests on GitHub:
#7916.
The changelog categorization was made clearer. The
contributors can now mark their fragment files more
accurately -- by :user:webknjaz.

The new category tags are:
```
* ``bugfix``

* ``feature``

* ``deprecation``

* ``breaking`` (previously, ``removal``)

* ``doc``

* ``packaging``

* ``contrib``

* ``misc``
```
Related issues and pull requests on GitHub:
#8066.

Miscellaneous internal changes

Replaced all tmpdir fixtures with tmp_path in test suite.

Related issues and pull requests on GitHub:
#3551.

`v3.9.1`

Compare Source

==================

Bugfixes

Fixed importing aiohttp under PyPy on Windows.

#7848 <https://github.com/aio-libs/aiohttp/issues/7848>_
Fixed async concurrency safety in websocket compressor.

#7865 <https://github.com/aio-libs/aiohttp/issues/7865>_
Fixed ClientResponse.close() releasing the connection instead of closing.

#7869 <https://github.com/aio-libs/aiohttp/issues/7869>_
Fixed a regression where connection may get closed during upgrade. -- by :user:Dreamsorcerer

#7879 <https://github.com/aio-libs/aiohttp/issues/7879>_
Fixed messages being reported as upgraded without an Upgrade header in Python parser. -- by :user:Dreamsorcerer

#7895 <https://github.com/aio-libs/aiohttp/issues/7895>_

`v3.9.0`

Compare Source

==================

Features

Introduced AppKey for static typing support of Application storage.
See https://docs.aiohttp.org/en/stable/web_advanced.html#application-s-config

#5864 <https://github.com/aio-libs/aiohttp/issues/5864>_
Added a graceful shutdown period which allows pending tasks to complete before the application's cleanup is called.
The period can be adjusted with the shutdown_timeout parameter. -- by :user:Dreamsorcerer.
See https://docs.aiohttp.org/en/latest/web_advanced.html#graceful-shutdown

#7188 <https://github.com/aio-libs/aiohttp/issues/7188>_
Added handler_cancellation <https://docs.aiohttp.org/en/stable/web_advanced.html#web-handler-cancellation>_ parameter to cancel web handler on client disconnection. -- by :user:mosquito
This (optionally) reintroduces a feature removed in a previous release.
Recommended for those looking for an extra level of protection against denial-of-service attacks.

#7056 <https://github.com/aio-libs/aiohttp/issues/7056>_
Added support for setting response header parameters max_line_size and max_field_size.

#2304 <https://github.com/aio-libs/aiohttp/issues/2304>_
Added auto_decompress parameter to ClientSession.request to override ClientSession._auto_decompress. -- by :user:Daste745

#3751 <https://github.com/aio-libs/aiohttp/issues/3751>_
Changed raise_for_status to allow a coroutine.

#3892 <https://github.com/aio-libs/aiohttp/issues/3892>_
Added client brotli compression support (optional with runtime check).

#5219 <https://github.com/aio-libs/aiohttp/issues/5219>_
Added client_max_size to BaseRequest.clone() to allow overriding the request body size. -- :user:anesabml.

#5704 <https://github.com/aio-libs/aiohttp/issues/5704>_
Added a middleware type alias aiohttp.typedefs.Middleware.

#5898 <https://github.com/aio-libs/aiohttp/issues/5898>_
Exported HTTPMove which can be used to catch any redirection request
that has a location -- :user:dreamsorcerer.

#6594 <https://github.com/aio-libs/aiohttp/issues/6594>_
Changed the path parameter in web.run_app() to accept a pathlib.Path object.

#6839 <https://github.com/aio-libs/aiohttp/issues/6839>_
Performance: Skipped filtering CookieJar when the jar is empty or all cookies have expired.

#7819 <https://github.com/aio-libs/aiohttp/issues/7819>_
Performance: Only check origin if insecure scheme and there are origins to treat as secure, in CookieJar.filter_cookies().

#7821 <https://github.com/aio-libs/aiohttp/issues/7821>_
Performance: Used timestamp instead of datetime to achieve faster cookie expiration in CookieJar.

#7824 <https://github.com/aio-libs/aiohttp/issues/7824>_
Added support for passing a custom server name parameter to HTTPS connection.

#7114 <https://github.com/aio-libs/aiohttp/issues/7114>_
Added support for using Basic Auth credentials from :file:.netrc file when making HTTP requests with the
:py:class:~aiohttp.ClientSession trust_env argument is set to True. -- by :user:yuvipanda.

#7131 <https://github.com/aio-libs/aiohttp/issues/7131>_
Turned access log into no-op when the logger is disabled.

#7240 <https://github.com/aio-libs/aiohttp/issues/7240>_
Added typing information to RawResponseMessage. -- by :user:Gobot1234

#7365 <https://github.com/aio-libs/aiohttp/issues/7365>_
Removed async-timeout for Python 3.11+ (replaced with asyncio.timeout() on newer releases).

#7502 <https://github.com/aio-libs/aiohttp/issues/7502>_
Added support for brotlicffi as an alternative to brotli (fixing Brotli support on PyPy).

#7611 <https://github.com/aio-libs/aiohttp/issues/7611>_
Added WebSocketResponse.get_extra_info() to access a protocol transport's extra info.

#7078 <https://github.com/aio-libs/aiohttp/issues/7078>_
Allow link argument to be set to None/empty in HTTP 451 exception.

#7689 <https://github.com/aio-libs/aiohttp/issues/7689>_

Bugfixes

Implemented stripping the trailing dots from fully-qualified domain names in Host headers and TLS context when acting as an HTTP client.
This allows the client to connect to URLs with FQDN host name like https://example.com./.
-- by :user:martin-sucha.

#3636 <https://github.com/aio-libs/aiohttp/issues/3636>_
Fixed client timeout not working when incoming data is always available without waiting. -- by :user:Dreamsorcerer.

#5854 <https://github.com/aio-libs/aiohttp/issues/5854>_
Fixed readuntil to work with a delimiter of more than one character.

#6701 <https://github.com/aio-libs/aiohttp/issues/6701>_
Added __repr__ to EmptyStreamReader to avoid AttributeError.

#6916 <https://github.com/aio-libs/aiohttp/issues/6916>_
Fixed bug when using TCPConnector with ttl_dns_cache=0.

#7014 <https://github.com/aio-libs/aiohttp/issues/7014>_
Fixed response returned from expect handler being thrown away. -- by :user:Dreamsorcerer

#7025 <https://github.com/aio-libs/aiohttp/issues/7025>_
Avoided raising UnicodeDecodeError in multipart and in HTTP headers parsing.

#7044 <https://github.com/aio-libs/aiohttp/issues/7044>_
Changed sock_read timeout to start after writing has finished, avoiding read timeouts caused by an unfinished write. -- by :user:dtrifiro

#7149 <https://github.com/aio-libs/aiohttp/issues/7149>_
Fixed missing query in tracing method URLs when using yarl 1.9+.

#7259 <https://github.com/aio-libs/aiohttp/issues/7259>_
Changed max 32-bit timestamp to an aware datetime object, for consistency with the non-32-bit one, and to avoid a DeprecationWarning on Python 3.12.

#7302 <https://github.com/aio-libs/aiohttp/issues/7302>_
Fixed EmptyStreamReader.iter_chunks() never ending. -- by :user:mind1m

#7616 <https://github.com/aio-libs/aiohttp/issues/7616>_
Fixed a rare RuntimeError: await wasn't used with future exception. -- by :user:stalkerg

#7785 <https://github.com/aio-libs/aiohttp/issues/7785>_
Fixed issue with insufficient HTTP method and version validation.

#7700 <https://github.com/aio-libs/aiohttp/issues/7700>_
Added check to validate that absolute URIs have schemes.

#7712 <https://github.com/aio-libs/aiohttp/issues/7712>_
Fixed unhandled exception when Python HTTP parser encounters unpaired Unicode surrogates.

#7715 <https://github.com/aio-libs/aiohttp/issues/7715>_
Updated parser to disallow invalid characters in header field names and stop accepting LF as a request line separator.

#7719 <https://github.com/aio-libs/aiohttp/issues/7719>_
Fixed Python HTTP parser not treating 204/304/1xx as an empty body.

#7755 <https://github.com/aio-libs/aiohttp/issues/7755>_
Ensure empty body response for 1xx/204/304 per RFC 9112 sec 6.3.

#7756 <https://github.com/aio-libs/aiohttp/issues/7756>_
Fixed an issue when a client request is closed before completing a chunked payload. -- by :user:Dreamsorcerer

#7764 <https://github.com/aio-libs/aiohttp/issues/7764>_
Edge Case Handling for ResponseParser for missing reason value.

#7776 <https://github.com/aio-libs/aiohttp/issues/7776>_
Fixed ClientWebSocketResponse.close_code being erroneously set to None when there are concurrent async tasks receiving data and closing the connection.

#7306 <https://github.com/aio-libs/aiohttp/issues/7306>_
Added HTTP method validation.

#6533 <https://github.com/aio-libs/aiohttp/issues/6533>_
Fixed arbitrary sequence types being allowed to inject values via version parameter. -- by :user:Dreamsorcerer

#7835 <https://github.com/aio-libs/aiohttp/issues/7835>_
Performance: Fixed increase in latency with small messages from websocket compression changes.

#7797 <https://github.com/aio-libs/aiohttp/issues/7797>_

Improved Documentation

Fixed the ClientResponse.release's type in the doc. Changed from comethod to method.

#5836 <https://github.com/aio-libs/aiohttp/issues/5836>_
Added information on behavior of base_url parameter in ClientSession.

#6647 <https://github.com/aio-libs/aiohttp/issues/6647>_
Fixed ClientResponseError docs.

#6700 <https://github.com/aio-libs/aiohttp/issues/6700>_
Updated Redis code examples to follow the latest API.

#6907 <https://github.com/aio-libs/aiohttp/issues/6907>_
Added a note about possibly needing to update headers when using on_response_prepare. -- by :user:Dreamsorcerer

#7283 <https://github.com/aio-libs/aiohttp/issues/7283>_
Completed trust_env parameter description to honor wss_proxy, ws_proxy or no_proxy env.

#7325 <https://github.com/aio-libs/aiohttp/issues/7325>_
Expanded SSL documentation with more examples (e.g. how to use certifi). -- by :user:Dreamsorcerer

#7334 <https://github.com/aio-libs/aiohttp/issues/7334>_
Fix, update, and improve client exceptions documentation.

#7733 <https://github.com/aio-libs/aiohttp/issues/7733>_

Deprecations and Removals

Added shutdown_timeout parameter to BaseRunner, while
deprecating shutdown_timeout parameter from BaseSite. -- by :user:Dreamsorcerer

#7718 <https://github.com/aio-libs/aiohttp/issues/7718>_
Dropped Python 3.6 support.

#6378 <https://github.com/aio-libs/aiohttp/issues/6378>_
Dropped Python 3.7 support. -- by :user:Dreamsorcerer

#7336 <https://github.com/aio-libs/aiohttp/issues/7336>_
Removed support for abandoned tokio event loop. -- by :user:Dreamsorcerer

#7281 <https://github.com/aio-libs/aiohttp/issues/7281>_

Misc

Made print argument in run_app() optional.

#3690 <https://github.com/aio-libs/aiohttp/issues/3690>_
Improved performance of ceil_timeout in some cases.

#6316 <https://github.com/aio-libs/aiohttp/issues/6316>_
Changed importing Gunicorn to happen on-demand, decreasing import time by ~53%. -- :user:Dreamsorcerer

#6591 <https://github.com/aio-libs/aiohttp/issues/6591>_
Improved import time by replacing http.server with http.HTTPStatus.

#6903 <https://github.com/aio-libs/aiohttp/issues/6903>_
Fixed annotation of ssl parameter to disallow True. -- by :user:Dreamsorcerer.

#7335 <https://github.com/aio-libs/aiohttp/issues/7335>_

`v3.8.6`

Compare Source

==================

Security bugfixes

Upgraded the vendored copy of llhttp_ to v9.1.3 -- by :user:Dreamsorcerer

Thanks to :user:kenballus for reporting this, see
GHSA-pjjw-qhg8-p2p9.

.. _llhttp: https://llhttp.org

#7647 <https://github.com/aio-libs/aiohttp/issues/7647>_
Updated Python parser to comply with RFCs 9110/9112 -- by :user:Dreamorcerer

Thanks to :user:kenballus for reporting this, see
GHSA-gfw2-4jvh-wgfg.

#7663 <https://github.com/aio-libs/aiohttp/issues/7663>_

Deprecation

Added fallback_charset_resolver parameter in ClientSession to allow a user-supplied
character set detection function.

Character set detection will no longer be included in 3.9 as a default. If this feature is needed,
please use fallback_charset_resolver <https://docs.aiohttp.org/en/stable/client_advanced.html#character-set-detection>_.

#7561 <https://github.com/aio-libs/aiohttp/issues/7561>_

Features

Enabled lenient response parsing for more flexible parsing in the client
(this should resolve some regressions when dealing with badly formatted HTTP responses). -- by :user:Dreamsorcerer

#7490 <https://github.com/aio-libs/aiohttp/issues/7490>_

Bugfixes

Fixed PermissionError when .netrc is unreadable due to permissions.

#7237 <https://github.com/aio-libs/aiohttp/issues/7237>_
Fixed output of parsing errors pointing to a \n. -- by :user:Dreamsorcerer

#7468 <https://github.com/aio-libs/aiohttp/issues/7468>_
Fixed GunicornWebWorker max_requests_jitter not working.

#7518 <https://github.com/aio-libs/aiohttp/issues/7518>_
Fixed sorting in filter_cookies to use cookie with longest path. -- by :user:marq24.

#7577 <https://github.com/aio-libs/aiohttp/issues/7577>_
Fixed display of BadStatusLine messages from llhttp_. -- by :user:Dreamsorcerer

#7651 <https://github.com/aio-libs/aiohttp/issues/7651>_

`v3.8.5`: 3.8.5

Compare Source

Security bugfixes

Upgraded the vendored copy of llhttp_ to v8.1.1 -- by :user:webknjaz
and :user:Dreamsorcerer.

Thanks to :user:sethmlarson for reporting this and providing us with
comprehensive reproducer, workarounds and fixing details! For more
information, see
GHSA-45c4-8wx5-qw6w.

.. _llhttp: https://llhttp.org

(#7346)

Features

Added information to C parser exceptions to show which character caused the error. -- by :user:Dreamsorcerer

(#7366)

Bugfixes

Fixed a transport is :data:None error -- by :user:Dreamsorcerer.

(#3355)

`v3.8.4`

Compare Source

==================

Bugfixes

Fixed incorrectly overwriting cookies with the same name and domain, but different path.
#6638 <https://github.com/aio-libs/aiohttp/issues/6638>_
Fixed ConnectionResetError not being raised after client disconnection in SSL environments.
#7180 <https://github.com/aio-libs/aiohttp/issues/7180>_

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renovate · 2024-01-30T04:17:37Z

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renovate bot changed the title ~~Update dependency aiohttp to v3.8.5 [SECURITY]~~ Update dependency aiohttp to v3.8.6 [SECURITY] Nov 15, 2023

renovate bot force-pushed the renovate/pypi-aiohttp-vulnerability branch from 3de2b51 to 7943411 Compare November 15, 2023 00:08

renovate bot changed the title ~~Update dependency aiohttp to v3.8.6 [SECURITY]~~ Update dependency aiohttp to v3.9.0 [SECURITY] Nov 28, 2023

renovate bot force-pushed the renovate/pypi-aiohttp-vulnerability branch from 7943411 to 1368fb1 Compare November 28, 2023 02:15

Update dependency aiohttp to v3.9.2 [SECURITY]

6cdd152

renovate bot force-pushed the renovate/pypi-aiohttp-vulnerability branch from 1368fb1 to 6cdd152 Compare January 30, 2024 01:42

renovate bot changed the title ~~Update dependency aiohttp to v3.9.0 [SECURITY]~~ Update dependency aiohttp to v3.9.2 [SECURITY] Jan 30, 2024

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Update dependency aiohttp to v3.9.2 [SECURITY] #98

Update dependency aiohttp to v3.9.2 [SECURITY] #98

renovate bot commented Jul 20, 2023 •

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renovate bot commented Jan 30, 2024 •

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Update dependency aiohttp to v3.9.2 [SECURITY] #98

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Update dependency aiohttp to v3.9.2 [SECURITY] #98

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renovate bot commented Jul 20, 2023 • edited Loading

GitHub Vulnerability Alerts

Impact

Reproducer

Patches

Workarounds

References

Summary

Details

Bug 1: Bad parsing of Content-Length values

Description

Examples

Suggested action

Bug 2: Improper handling of NUL, CR, and LF in header values

Description

Examples

Suggested action

Bug 3: Improper stripping of whitespace before colon in HTTP headers

Description

Example

Suggested action

PoC

Impact

Summary

Summary

Details

PoC

Impact

Workaround

Summary

Details

PoC

Impact

Workaround

Summary

Details

PoC

Impact

Summary

Details

Impact

Workaround

Release Notes

v3.9.2: 3.9.2

Bug fixes

Features

Breaking changes

Improved documentation

Packaging updates and notes for downstreams

Contributor-facing changes

Miscellaneous internal changes

Bugfixes

Features

Bugfixes

Improved Documentation

Deprecations and Removals

Misc

Security bugfixes

Deprecation

Features

Bugfixes

v3.8.5: 3.8.5

Security bugfixes

Features

Bugfixes

Bugfixes

Configuration

renovate bot commented Jan 30, 2024 • edited Loading

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renovate bot commented Jul 20, 2023 •

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Bug 1: Bad parsing of `Content-Length` values

`v3.9.2`: 3.9.2

`v3.8.5`: 3.8.5

renovate bot commented Jan 30, 2024 •

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