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CVE-2025-8194 Detail

Description

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


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1 Python Software Foundation
https://github.com/python/cpython/commit/7040aa54f14676938970e10c5f74ea93cd56aa38 Python Software Foundation
https://github.com/python/cpython/commit/c9d9f78feb1467e73fd29356c040bde1c104f29f Python Software Foundation
https://github.com/python/cpython/commit/cdae923ffe187d6ef916c0f665a31249619193fe Python Software Foundation
https://github.com/python/cpython/commit/fbc2a0ca9ac8aff6887f8ddf79b87b4510277227 Python Software Foundation
https://github.com/python/cpython/issues/130577 Python Software Foundation
https://github.com/python/cpython/pull/137027 Python Software Foundation
https://mail.python.org/archives/list/[email protected]/thread/ZULLF3IZ726XP5EY7XJ7YIN3K5MDYR2D/ Python Software Foundation

Weakness Enumeration

CWE-ID CWE Name Source
CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop') Python Software Foundation  

Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-8194
NVD Published Date:
07/28/2025
NVD Last Modified:
08/07/2025
Source:
Python Software Foundation