CVE-2026-41140
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | affected | |
| debian | forky | fixed | 2.1.2+dfsg-1 |
| debian | sid | fixed | 2.1.2+dfsg-1 |
| debian | trixie | fixed | 2.1.2+dfsg-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | poetry | <2.3.4 | 2.3.4 |
References
- https://github.com/python-poetry/poetry/security/advisories/GHSA-73h3-mf4w-8647
- https://nvd.nist.gov/vuln/detail/CVE-2026-41140
- https://github.com/python-poetry/poetry
- https://github.com/python-poetry/poetry/releases/tag/2.3.4
- https://www.suse.com/security/cve/CVE-2026-41140.html
- https://security-tracker.debian.org/tracker/CVE-2026-41140
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.