Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://ftp.gnu.org/gnu/libextractor/
- https://git.gnunet.org/gnunet/libextractor/commit/6edfa653c048800e24a17f7e8cc2bb
- https://github.com/Haitam-lazaar/libextractor-privesc
- https://www.gnu.org/software/libextractor/
- https://www.vulncheck.com/advisories/gnu-libextractor-before-1.16-privilege-esca
- http://www.openwall.com/lists/oss-security/2026/09/25/25
FAQ
What is CVE-2026-100310?
CVE-2026-100310 is a vulnerability with a CVSS score of 7.0 (HIGH). 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...
How severe is CVE-2026-100310?
CVE-2026-100310 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-100310?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.