CVE-2026-100310

High

Description

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.

SeverityHigh

CVSS7.0

Exploit probability—

Product

Gnu Libextractor

PublishedSep 25, 2026

First seenSep 25, 2026

Weakness typeCWE-426CWE-426

How to fix

Update

GNU libextractor1.16 or later

Patches

git.gnunet.org/gnunet/libextractor/commit/6edfa653c048800e24a17f7e8cc2bb42659b8d01.html

Vendor advisories

ftp.gnu.org/gnu/libextractor/

Affected products

Product	Affected versions	Fixed in
GNU libextractor	v < 1.16	1.16

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