CVE-2025-8194

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

The following products are affected by CVE-2025-8194 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-8194.

URL	Resource
http://www.openwall.com/lists/oss-security/2025/07/28/1
http://www.openwall.com/lists/oss-security/2025/07/28/2
https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1
https://github.com/python/cpython/commit/57f5981d6260ed21266e0c26951b8564cc252bc2
https://github.com/python/cpython/commit/7040aa54f14676938970e10c5f74ea93cd56aa38
https://github.com/python/cpython/commit/73f03e4808206f71eb6b92c579505a220942ef19
https://github.com/python/cpython/commit/b4ec17488eedec36d3c05fec127df71c0071f6cb
https://github.com/python/cpython/commit/c9d9f78feb1467e73fd29356c040bde1c104f29f
https://github.com/python/cpython/commit/cdae923ffe187d6ef916c0f665a31249619193fe
https://github.com/python/cpython/commit/fbc2a0ca9ac8aff6887f8ddf79b87b4510277227
https://github.com/python/cpython/issues/130577
https://github.com/python/cpython/pull/137027
https://mail.python.org/archives/list/[email protected]/thread/ZULLF3IZ726XP5EY7XJ7YIN3K5MDYR2D/
https://nvd.nist.gov/vuln/detail/CVE-2025-8194
https://www.cve.org/CVERecord?id=CVE-2025-8194