CVE-2026-34591
Poetry Has Wheel Path Traversal Which Can Lead to Arbitrary File Write
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.
INFO
Published Date :
April 2, 2026, 6:16 p.m.
Last Modified :
April 13, 2026, 6:38 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Poetry to version 2.3.3 or later.
- Ensure packages are from trusted sources.
Public PoC/Exploit Available at Github
CVE-2026-34591 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-34591.
| URL | Resource |
|---|---|
| http://github.com/python-poetry/poetry/commit/ed59537ac3709cfbdbf95d957de801c13872991a | Patch |
| https://github.com/python-poetry/poetry/pull/10792 | Issue Tracking Patch |
| https://github.com/python-poetry/poetry/releases/tag/2.3.3 | Product Release Notes |
| https://github.com/python-poetry/poetry/security/advisories/GHSA-2599-h6xx-hpxp | Exploit Vendor Advisory |
| https://github.com/python-poetry/poetry/security/advisories/GHSA-2599-h6xx-hpxp | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-34591 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-34591
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
All Public RunWhen Helm Charts - Managed by terraform
Shell Dockerfile Go Template
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-34591 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-34591 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 13, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Added CPE Configuration OR *cpe:2.3:a:python-poetry:poetry:*:*:*:*:*:python:*:* versions from (including) 1.4.0 up to (excluding) 2.3.3 Added Reference Type GitHub, Inc.: http://github.com/python-poetry/poetry/commit/ed59537ac3709cfbdbf95d957de801c13872991a Types: Patch Added Reference Type GitHub, Inc.: https://github.com/python-poetry/poetry/pull/10792 Types: Issue Tracking, Patch Added Reference Type GitHub, Inc.: https://github.com/python-poetry/poetry/releases/tag/2.3.3 Types: Product, Release Notes Added Reference Type CISA-ADP: https://github.com/python-poetry/poetry/security/advisories/GHSA-2599-h6xx-hpxp Types: Exploit, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/python-poetry/poetry/security/advisories/GHSA-2599-h6xx-hpxp Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 03, 2026
Action Type Old Value New Value Added Reference https://github.com/python-poetry/poetry/security/advisories/GHSA-2599-h6xx-hpxp -
New CVE Received by [email protected]
Apr. 02, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-22 Added Reference http://github.com/python-poetry/poetry/commit/ed59537ac3709cfbdbf95d957de801c13872991a Added Reference https://github.com/python-poetry/poetry/pull/10792 Added Reference https://github.com/python-poetry/poetry/releases/tag/2.3.3 Added Reference https://github.com/python-poetry/poetry/security/advisories/GHSA-2599-h6xx-hpxp