CVE-2024-34064

Jinja is an extensible templating engine. 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 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. This vulnerability is fixed in 3.1.4.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.4 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
GitHub_MCNA
5.4 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CISA-ADPADP
5.4 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CVEADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 25%
VendorProductVersion
palletsprojectsjinja
𝑥
< 3.1.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
jinja2
bullseye
vulnerable
buster
postponed
bullseye (security)
2.11.3-1+deb11u4
fixed
bookworm
3.1.2-1+deb12u2
fixed
sid
3.1.6-1
fixed
trixie
3.1.6-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
jinja2
plucky
Fixed 3.1.3-1ubuntu1
released
oracular
Fixed 3.1.3-1ubuntu1
released
noble
Fixed 3.1.2-1ubuntu1.1
released
mantic
Fixed 3.1.2-1ubuntu0.23.10.2
released
jammy
Fixed 3.0.3-1ubuntu0.2
released
focal
Fixed 2.10.1-2ubuntu0.3
released
bionic
Fixed 2.10-1ubuntu0.18.04.1+esm2
released
xenial
Fixed 2.8-1ubuntu0.1+esm3
released
trusty
Fixed 2.7.2-2ubuntu0.1~esm3
released