CVE-2026-4360

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-4360
In the Tarfile.extract() function, the filter parameter is not passed properly when extracting hardlinks. An affected system that extracts content from untrusted tar files could end up writing files with an unexpected uid/gid despite the user passing filter='data' to the extract() function.

5.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/python/cpython/commit/5e0ef3f1afe892e4f64eb83368db57ac4c40cba0 Patch
https://github.com/python/cpython/commit/7b57e8d51446297b8c7c482d224bc5f1938e4301 Patch
https://github.com/python/cpython/commit/7ccdbaba2c54250a70d7f25632152df7655a5e0a Patch
https://github.com/python/cpython/commit/d2b2f5eacab4dd48446b63340613b05dcbbf0b44 Patch
https://github.com/python/cpython/commit/eee3ddf0ca10283cc7fea724aae9cd8665f8d15e Patch
https://github.com/python/cpython/issues/151987 Issue Tracking Patch
https://github.com/python/cpython/pull/151988 Issue Tracking Patch
https://mail.python.org/archives/list/security-announce@python.org/thread/TWZW2PC2AZOV6FENIHFSRC63OM7MBGSB/ Issue Tracking Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
History

09 Jul 2026, 02:40

Type Values Removed Values Added
CPE cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
References () https://github.com/python/cpython/commit/5e0ef3f1afe892e4f64eb83368db57ac4c40cba0 - () https://github.com/python/cpython/commit/5e0ef3f1afe892e4f64eb83368db57ac4c40cba0 - Patch
References () https://github.com/python/cpython/commit/7b57e8d51446297b8c7c482d224bc5f1938e4301 - () https://github.com/python/cpython/commit/7b57e8d51446297b8c7c482d224bc5f1938e4301 - Patch
References () https://github.com/python/cpython/commit/7ccdbaba2c54250a70d7f25632152df7655a5e0a - () https://github.com/python/cpython/commit/7ccdbaba2c54250a70d7f25632152df7655a5e0a - Patch
References () https://github.com/python/cpython/commit/d2b2f5eacab4dd48446b63340613b05dcbbf0b44 - () https://github.com/python/cpython/commit/d2b2f5eacab4dd48446b63340613b05dcbbf0b44 - Patch
References () https://github.com/python/cpython/commit/eee3ddf0ca10283cc7fea724aae9cd8665f8d15e - () https://github.com/python/cpython/commit/eee3ddf0ca10283cc7fea724aae9cd8665f8d15e - Patch
References () https://github.com/python/cpython/issues/151987 - () https://github.com/python/cpython/issues/151987 - Issue Tracking, Patch
References () https://github.com/python/cpython/pull/151988 - () https://github.com/python/cpython/pull/151988 - Issue Tracking, Patch
References () https://mail.python.org/archives/list/security-announce@python.org/thread/TWZW2PC2AZOV6FENIHFSRC63OM7MBGSB/ - () https://mail.python.org/archives/list/security-announce@python.org/thread/TWZW2PC2AZOV6FENIHFSRC63OM7MBGSB/ - Issue Tracking, Vendor Advisory
First Time Python
Python python
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.3

07 Jul 2026, 18:16

Type Values Removed Values Added
References
  • () https://github.com/python/cpython/commit/d2b2f5eacab4dd48446b63340613b05dcbbf0b44 -

30 Jun 2026, 16:16

Type Values Removed Values Added
References
  • () https://github.com/python/cpython/commit/5e0ef3f1afe892e4f64eb83368db57ac4c40cba0 -
  • () https://github.com/python/cpython/commit/7b57e8d51446297b8c7c482d224bc5f1938e4301 -
  • () https://github.com/python/cpython/commit/7ccdbaba2c54250a70d7f25632152df7655a5e0a -
  • () https://github.com/python/cpython/commit/eee3ddf0ca10283cc7fea724aae9cd8665f8d15e -

30 Jun 2026, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-06-30 15:16

Updated : 2026-07-09 02:40

NVD link : CVE-2026-4360

Mitre link : CVE-2026-4360

CVE.ORG link : CVE-2026-4360

JSON object : View

Products Affected

python

  • python
CWE
CWE-281

Improper Preservation of Permissions