Poetry: Path traversal in tar extraction on Python 3.10.0 - 3.10.12 and 3.11.0 - 3.11.4
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 0.6epss 0.3%
exploitation probability
0.3%top 78% of all CVEs
observed exploitation
nono source reports it
Poetry is a dependency manager for Python. Prior to 2.3.4, the extractall() function in src/poetry/utils/helpers.py:410-426 extracts sdist tarballs without path traversal protection on Python versions where tarfile.data_filter is unavailable. Considering only Python versions which are still supported by Poetry, these are 3.10.0 - 3.10.12 and 3.11.0 - 3.11.4. This vulnerability is fixed in 2.3.4.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U
Affected products
python-poetry · poetryReferences
https://access.redhat.com/errata/RHSA-2026:24866https://access.redhat.com/security/cve/CVE-2026-41140https://bugzilla.redhat.com/show_bug.cgi?id=2461604https://github.com/python-poetry/poetry/security/advisories/GHSA-73h3-mf4w-8647https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41140.json