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CVE-2026-34591

6.5 · MEDIUM

Poetry is a dependency manager for Python.

Published Apr 2, 2026CWE-22EPSS 0.55%

Overview

CVE-2026-34591 is a medium-severity vulnerability. It was published on April 2, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/python-poetry/poetry/commit/ed59537ac3709cfbdbf95d957de801c13872991aGitHubgithub.com/python-poetry/poetry/pull/10792GitHubgithub.com/python-poetry/poetry/releases/tag/2.3.3GitHubgithub.com/python-poetry/poetry/security/advisories/GHSA-2599-h6xx-hpxpGitHubgithub.com/python-poetry/poetry/security/advisories/GHSA-2599-h6xx-hpxp

How CyberStrike helps

Frequently asked questions

What is CVE-2026-34591?

CVE-2026-34591 is a medium-severity vulnerability. It was published on April 2, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-34591?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-34591?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-34591?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-34591 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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