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CVE-2026-34591— Poetry Has Wheel Path Traversal Which Can Lead to Arbitrary File Write

Quick assessment

Affected
python-poetry poetry
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Poetry是Poetry开源的一款Python中用于依赖管理和打包的工具。 Poetry 1.4.0版本至2.3.3之前版本存在路径遍历漏洞，该漏洞源于特制的wheel文件可能包含未经限制检查的../路径，可能导致以Poetry进程权限任意写入文件。

AI Predicted 8.8 Difficulty: Easy EPSS 0.55% · P44
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I. Basic Information for CVE-2026-34591

Vulnerability Information
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Vulnerability Title
Poetry Has Wheel Path Traversal Which Can Lead to Arbitrary File Write
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Poetry 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Poetry是Poetry开源的一款Python中用于依赖管理和打包的工具。 Poetry 1.4.0版本至2.3.3之前版本存在路径遍历漏洞，该漏洞源于特制的wheel文件可能包含未经限制检查的../路径，可能导致以Poetry进程权限任意写入文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
python-poetry poetry >= 1.4.0, < 2.3.3 -

II. Public POCs for CVE-2026-34591

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III. Intelligence Information for CVE-2026-34591

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Patches & Fixes for CVE-2026-34591 (2)

Vendor Advisories for CVE-2026-34591 (1)

Vendor Pages for CVE-2026-34591 (1)

IV. Related Vulnerabilities

Same product: poetry
Same vendor: python-poetry
Same weakness: CWE-22

V. Comments for CVE-2026-34591

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