CVE-2026-7774

MEDIUM EPSS 44.5%
Published Jun 4, 20263w ago · Modified Jun 17, 20262w ago
6.9 CVSS 4.0
Medium
Find Similar
Published Jun 4, 2026 3w ago
Last Modified Jun 17, 2026 2w ago

Description

tarfile.data_filter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended extraction directory. This allowed a malicious tar archive to cause tarfile.extractall() to write files outside the destination directory, subject to the permissions of the extracting process.

CVSS Details

Base Score
6.9
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction A
Scope X

Threat Intelligence

EPSS Exploit Probability
44.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-22 Path Traversal Resource Mgmt

References 9

  • openwall.com http://www.openwall.com/lists/oss-security/2026/06/04/9
  • github.com https://github.com/python/cpython/commit/0478bd83d82b255e0f29f613367a59d261e7eaa2
  • github.com https://github.com/python/cpython/commit/0d28f5e46e151718972dfabd91205444d0037b6d
  • github.com https://github.com/python/cpython/commit/578411982c16f753f4893532510099ef665117da
  • github.com https://github.com/python/cpython/commit/5cf47a248c35c375d610b87b2f72fd1ed454b558
  • github.com https://github.com/python/cpython/commit/74cca9a92fb7d653e404843a56b8bdc7b0afdbbf
  • github.com https://github.com/python/cpython/issues/149486
  • github.com https://github.com/python/cpython/pull/149487
  • mail.python.org https://mail.python.org/archives/list/security-announce@python.org/thread/4FU62L2M6RMMHT2QPGQNPEHHUND7CEX5/

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.