DEBIAN-CVE-2026-7774

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-7774
Published: 04 Jun 2026, 16:16
Last modified:13 Jul 2026, 15:00

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
6.9 MEDIUM
4.0 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

04 Jun 2026, 16:16
Published
Vulnerability first disclosed
13 Jul 2026, 15:00
Last Modified
Vulnerability information updated

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 Metrics

  • v4.0•MEDIUM•Score: 6.9CVSS: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

Affected Systems

  • debian•pypy3

    all | all | all | all

  • debian•python2.7

    all

  • debian•python3.11

    all

  • debian•python3.13

    all | all | < 3.13.5-2+deb13u3 | < 3.13.14-1

  • debian•python3.14

    all | < 3.14.6-1

  • debian•python3.9

    all

References (1)