CVE-2026-34591
Description
Poetry is a dependency manager for Python. From version 1.4.0 to before version 2.3.3, a crafted wheel can contain ../ paths that Poetry writes to disk without containment checks, allowing arbitrary file write with the privileges of the Poetry process. It is reachable from untrusted package artifacts during normal install flows. (Normally, installing a malicious wheel is not sufficient for execution of malicious code. Malicious code will only be executed after installation if the malicious package is imported or invoked by the user.). This issue has been patched in version 2.3.3.
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 | affected | |
| debian | sid | affected | |
| debian | trixie | affected | |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | poetry | >=1.4.0,<2.3.3 | 2.3.3 |
References
- https://github.com/python-poetry/poetry/security/advisories/GHSA-2599-h6xx-hpxp
- https://nvd.nist.gov/vuln/detail/CVE-2026-34591
- https://github.com/python-poetry/poetry/pull/10792
- https://github.com/python-poetry/poetry
- https://github.com/python-poetry/poetry/releases/tag/2.3.3
- http://github.com/python-poetry/poetry/commit/ed59537ac3709cfbdbf95d957de801c13872991a
- https://www.suse.com/security/cve/CVE-2026-34591.html
- https://security-tracker.debian.org/tracker/CVE-2026-34591
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.