High severity7.0NVD Advisory· Published Sep 25, 2026· Updated Sep 26, 2026
CVE-2026-100310
CVE-2026-100310
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.
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Affected products
1- Range: <1.16
Patches
Vulnerability mechanics
References
5- www.openwall.com/lists/oss-security/2026/09/25/25nvd
- ftp.gnu.org/gnu/libextractor/nvd
- git.gnunet.org/gnunet/libextractor/commit/6edfa653c048800e24a17f7e8cc2bb42659b8d01.htmlnvd
- www.gnu.org/software/libextractor/nvd
- www.vulncheck.com/advisories/gnu-libextractor-before-1.16-privilege-escalation-via-libextractor-prefixnvd
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