CVE-2026-100310CWE-426

CVE-2026-100310

High · published September 26, 2026

CVSS v3.1
7.0
EPSS
0%
Percentile
2.8
In the wild
Unconfirmed
What it is

GNU libextractor before 1.16 loads plugins from an untrusted search path specified by the LIBEXTRACTOR_PREFIX environment variable without proper privilege checks. A local attacker can exploit this by setting LIBEXTRACTOR_PREFIX to a directory containing a malicious plugin that executes arbitrary code with elevated privileges when loaded by a setuid or setgid program.

The record
Technical detail
CVSS v3.1
7.0 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
7.3 · CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00136 · 2.8th percentile
Weakness
CWE-426 · Untrusted Search Path
Published
2026-09-26T00:17Z
References (6)
https://ftp.gnu.org/gnu/libextractor/ · [email protected]https://git.gnunet.org/gnunet/libextractor/commit/6edfa653c048800e24a17f7e8cc2bb42659b8d01.html · [email protected]https://github.com/Haitam-lazaar/libextractor-privesc · [email protected]https://www.gnu.org/software/libextractor/ · [email protected]https://www.vulncheck.com/advisories/gnu-libextractor-before-1.16-privilege-escalation-via-libextractor-prefix · [email protected]http://www.openwall.com/lists/oss-security/2026/09/25/25 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 27 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 25 SEP 19:38Z
    GNU libextractor before 1.16 Privilege Escalation via LIBEXTRACTOR_PREFIX
    cvelistv5