Update dependency Jinja2 to v3.1.4 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
Jinja2 (changelog)	==3.1.2 -> ==3.1.4

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.

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Release Notes

pallets/jinja (Jinja2)

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

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