GHSA-q2x7-8rv6-6q7h

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Source
https://github.com/advisories/GHSA-q2x7-8rv6-6q7h
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/12/GHSA-q2x7-8rv6-6q7h/GHSA-q2x7-8rv6-6q7h.json
JSON Data
https://api.test.osv.dev/v1/vulns/GHSA-q2x7-8rv6-6q7h
Aliases
Related
Published
2024-12-23T17:56:08Z
Modified
2024-12-27T19:23:59.902181Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 5.4 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Jinja has a sandbox breakout through indirect reference to format method
Details

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.

Database specific 
{
    "nvd_published_at": "2024-12-23T16:15:07Z",
    "cwe_ids": [
        "CWE-693"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2024-12-23T17:56:08Z"
}
References

Affected packages

PyPI / jinja2

Package

Name
jinja2
View open source insights on deps.dev
Purl
pkg:pypi/jinja2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.1.5

Affected versions

2.*

2.0rc1
2.0
2.1
2.1.1
2.2
2.2.1
2.3
2.3.1
2.4
2.4.1
2.5
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
2.6
2.7
2.7.1
2.7.2
2.7.3
2.8
2.8.1
2.9
2.9.1
2.9.2
2.9.3
2.9.4
2.9.5
2.9.6
2.10
2.10.1
2.10.2
2.10.3
2.11.0
2.11.1
2.11.2
2.11.3

3.*

3.0.0a1
3.0.0rc1
3.0.0rc2
3.0.0
3.0.1
3.0.2
3.0.3
3.1.0
3.1.1
3.1.2
3.1.3
3.1.4

Database specific 

{
    "last_known_affected_version_range": "<= 3.1.4"
}