Medium severity6.5NVD Advisory· Published Apr 2, 2026· Updated Apr 13, 2026
CVE-2026-34591
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
poetryPyPI | >= 1.4.0, < 2.3.3 | 2.3.3 |
Affected products
4- osv-coords3 versions
< 0.27.1-r2+ 2 more
- (no CPE)range: < 0.27.1-r2
- (no CPE)range: < 0.27.1-r2
- (no CPE)range: >= 1.4.0, < 2.3.3
Patches
Vulnerability mechanics
References
6- github.com/python-poetry/poetry/commit/ed59537ac3709cfbdbf95d957de801c13872991anvdPatchWEB
- github.com/python-poetry/poetry/pull/10792nvdIssue TrackingPatchWEB
- github.com/python-poetry/poetry/security/advisories/GHSA-2599-h6xx-hpxpnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-2599-h6xx-hpxpghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-34591ghsaADVISORY
- github.com/python-poetry/poetry/releases/tag/2.3.3nvdProductRelease NotesWEB
News mentions
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