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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
GNU libextractor
Default version status: unaffected
0 to < 1.16affected
References
- https://github.com/Haitam-lazaar/libextractor-privesc ↗
- https://git.gnunet.org/gnunet/libextractor/commit/6edfa653c048800e24a17f7e8cc2bb42659b8d01.html ↗
- https://ftp.gnu.org/gnu/libextractor/ ↗
- https://www.gnu.org/software/libextractor/ ↗
- https://www.vulncheck.com/advisories/gnu-libextractor-before-1.16-privilege-escalation-via-libextractor-prefix ↗
- http://www.openwall.com/lists/oss-security/2026/09/25/25 ↗