CVE-2025-8194 (GCVE-0-2025-8194)

Vulnerability from cvelistv5 – Published: 2025-07-28 18:42 – Updated: 2026-04-21 20:17
VLAI
Title
Tarfile infinite loop during parsing with negative member offset
Summary
There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives. This vulnerability can be mitigated by including the following patch after importing the “tarfile” module:  https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
PSF
References
Impacted products
Vendor Product Version
Python Software Foundation CPython Affected: 0 , < 3.10.19 (python)
Affected: 3.11.0 , < 3.11.14 (python)
Affected: 3.12.0 , < 3.12.12 (python)
Affected: 3.13.0 , < 3.13.6 (python)
Affected: 3.14.0a1 , < 3.14.0rc2 (python)
Create a notification for this product.
Credits
Alexander Urieles Seth Larson Ethan Furman Steve Dower
Show details on NVD website
To clipboard 

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