Update dependency jinja2 to v3.1.5 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
jinja2 (changelog)	==3.0.2 -> ==3.1.5

GitHub Vulnerability Alerts

CVE-2024-22195

The xmlattr filter in affected versions of Jinja accepts keys containing spaces. XML/HTML attributes cannot contain spaces, as each would then be interpreted as a separate attribute. If an application accepts keys (as opposed to only values) as user input, and renders these in pages that other users see as well, an attacker could use this to inject other attributes and perform XSS. Note that accepting keys as user input is not common or a particularly intended use case of the xmlattr filter, and an application doing so should already be verifying what keys are provided regardless of this fix.

CVE-2024-34064

The xmlattr filter in affected versions of Jinja accepts keys containing non-attribute characters. XML/HTML attributes cannot contain spaces, /, >, or =, as each would then be interpreted as starting a separate attribute. If an application accepts keys (as opposed to only values) as user input, and renders these in pages that other users see as well, an attacker could use this to inject other attributes and perform XSS. The fix for the previous GHSA-h5c8-rqwp-cp95 CVE-2024-22195 only addressed spaces but not other characters.

Accepting keys as user input is now explicitly considered an unintended use case of the xmlattr filter, and code that does so without otherwise validating the input should be flagged as insecure, regardless of Jinja version. Accepting values as user input continues to be safe.

CVE-2024-56201

A bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja's sandbox is used.

To exploit the vulnerability, an attacker needs to control both the filename and the contents of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates where the template author can also choose the template filename.

CVE-2024-56326

An oversight in how the Jinja sandboxed environment detects calls to str.format allows an attacker that controls the content of a template to execute arbitrary Python code.

To exploit the vulnerability, an attacker needs to control the content of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates.

Jinja's sandbox does catch calls to str.format and ensures they don't escape the sandbox. However, it's possible to store a reference to a malicious string's format method, then pass that to a filter that calls it. No such filters are built-in to Jinja, but could be present through custom filters in an application. After the fix, such indirect calls are also handled by the sandbox.

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Release Notes

pallets/jinja (jinja2)

v3.1.5

Compare Source

Unreleased

• Calling sync render for an async template uses asyncio.run.
  :pr:1952
• Avoid unclosed auto_aiter warnings. :pr:1960
• Return an aclose-able AsyncGenerator from
  Template.generate_async. :pr:1960
• Avoid leaving root_render_func() unclosed in
  Template.generate_async. :pr:1960
• Avoid leaving async generators unclosed in blocks, includes and extends.
  :pr:1960

v3.1.4

Compare Source

Released 2024-05-05

• The xmlattr filter does not allow keys with / solidus, >
  greater-than sign, or = equals sign, in addition to disallowing spaces.
  Regardless of any validation done by Jinja, user input should never be used
  as keys to this filter, or must be separately validated first.
  :ghsa:h75v-3vvj-5mfj

v3.1.3

Compare Source

Released 2024-01-10

• Fix compiler error when checking if required blocks in parent templates are
  empty. :pr:1858
• xmlattr filter does not allow keys with spaces. :ghsa:h5c8-rqwp-cp95
• Make error messages stemming from invalid nesting of {% trans %} blocks
  more helpful. :pr:1918

v3.1.2

Compare Source

Released 2022-04-28

• Add parameters to Environment.overlay to match __init__.
  :issue:1645
• Handle race condition in FileSystemBytecodeCache. :issue:1654

v3.1.1

Compare Source

Released 2022-03-25

• The template filename on Windows uses the primary path separator.
  :issue:1637

v3.1.0

Compare Source

Released 2022-03-24

• Drop support for Python 3.6. :pr:1534

• Remove previously deprecated code. :pr:1544

  • WithExtension and AutoEscapeExtension are built-in now.
  • contextfilter and contextfunction are replaced by
    pass_context. evalcontextfilter and
    evalcontextfunction are replaced by pass_eval_context.
    environmentfilter and environmentfunction are replaced
    by pass_environment.
  • Markup and escape should be imported from MarkupSafe.
  • Compiled templates from very old Jinja versions may need to be
    recompiled.
  • Legacy resolve mode for Context subclasses is no longer
    supported. Override resolve_or_missing instead of
    resolve.
  • unicode_urlencode is renamed to url_quote.

• Add support for native types in macros. :issue:1510

• The {% trans %} tag can use pgettext and npgettext by
  passing a context string as the first token in the tag, like
  {% trans "title" %}. :issue:1430

• Update valid identifier characters from Python 3.6 to 3.7.
  :pr:1571

• Filters and tests decorated with @async_variant are pickleable.
  :pr:1612

• Add items filter. :issue:1561

• Subscriptions ([0], etc.) can be used after filters, tests, and
  calls when the environment is in async mode. :issue:1573

• The groupby filter is case-insensitive by default, matching
  other comparison filters. Added the case_sensitive parameter to
  control this. :issue:1463

• Windows drive-relative path segments in template names will not
  result in FileSystemLoader and PackageLoader loading from
  drive-relative paths. :pr:1621

v3.0.3

Compare Source

Released 2021-11-09

• Fix traceback rewriting internals for Python 3.10 and 3.11.
  :issue:1535
• Fix how the native environment treats leading and trailing spaces
  when parsing values on Python 3.10. :pr:1537
• Improve async performance by avoiding checks for common types.
  :issue:1514
• Revert change to hash(Node) behavior. Nodes are hashed by id
  again :issue:1521
• PackageLoader works when the package is a single module file.
  :issue:1512

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