CVE-2026-34591

Poetry Has Wheel Path Traversal Which Can Lead to Arbitrary File Write

CVE-2026-34591 is fixed in poetry on 1 platform, first by DEBIAN-CVE-2026-34591, released April 2, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
6.5
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0049
42nd percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
poetry · Debian 13.5 (trixie) 2.1.2+dfsg-1+deb13u1 DEBIAN-CVE-2026-34591 Apr 2, 2026
poetry · Debian 14 2.3.4-0.1 DEBIAN-CVE-2026-34591 Apr 2, 2026

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