RHLW-2026-bbcf7d39b1fbb255

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Source
https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-bbcf7d39b1fbb255.json
Import Source
https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-bbcf7d39b1fbb255.json
JSON Data
https://api.osv.dev/v1/vulns/RHLW-2026-bbcf7d39b1fbb255
Upstream
Published
2026-11-10T14:35:37Z
Modified
2026-11-10T23:00:02Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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
Lightwell Security Advisory: jinja2 3.1.5+rhlw.1
Details

Red Hat Lightwell has released jinja2 3.1.5+rhlw.1 with a backported security fix.

CVE-2025-27516: Jinja sandbox breakout through attr filter selecting format method

This patched artifact is a drop-in replacement for jinja2 3.1.5 from PyPI.

References
Credits
    • Red Hat Lightwell - REMEDIATION_DEVELOPER

Affected packages

Red Hat Lightwell:PyPI / jinja2

Package

Name
jinja2
Purl
pkg:pypi/jinja2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.1.5+rhlw.1

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
3.1.5

Database specific

lightwell 
{
    "backport_base_version": "3.1.5",
    "remediated_version": "3.1.5+rhlw.1",
    "repository_url": "https://packages.redhat.com/lightwell/python/remediated/"
}
source 
"https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-bbcf7d39b1fbb255.json"