CVE-2026-106057CWE-78command-injection

CVE-2026-106057

High · published October 7, 2026

CVSS v3.1
7.8
EPSS
1%
Percentile
54.8
In the wild
Unconfirmed
What it is

patool before 4.0.6 contains an OS command injection vulnerability on Windows because shell_quote_nt fails to escape cmd.exe metacharacters or embedded double quotes in archive filenames. Attackers can supply crafted filenames like report&calc.gz for single-file formats run with shell=True to execute commands with patool process privileges.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
8.5 · CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00759 · 54.8th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-10-07T16:17Z
References (4)
https://github.com/wummel/patool · [email protected]https://github.com/wummel/patool/blob/4.0.5/patoolib/util.py#L110-L116 · [email protected]https://github.com/wummel/patool/commit/592f35761f428afbcde2888ecd3cc4af43881aeb · [email protected]https://www.vulncheck.com/advisories/patool-before-4.0.6-os-command-injection-on-windows-via-shell-quote-nt · [email protected]
EPSS history
Timeline
  • 09 OCT 03:26Z
    EPSS moved — → 1%
    epss
  • 07 OCT 11:59Z
    patool before 4.0.6 OS Command Injection on Windows via shell_quote_nt
    cvelistv5