{"id":"CVE-2026-100310","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-100310","generatedAt":"2026-10-28T09:25:54.329Z","title":"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.","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.","published":"2026-09-25T20:17:06.000Z","lastModified":"2026-09-30T17:31:45.000Z","status":"Awaiting Analysis","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":7.3,"severity":"HIGH","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-426"],"affected":[],"epss":{"score":0.00137,"percentile":0.0305,"date":"2026-10-27","history":[{"date":"2026-09-26","score":0.00136,"percentile":0.02524}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-25T20:17:06.000Z","detail":{"score":"7.3","severity":"HIGH","publishedAt":"2026-09-25T20:17:05.833Z"},"summary":"New CVE, high severity (CVSS 7.3)."}],"references":[{"url":"https://ftp.gnu.org/gnu/libextractor/","source":"disclosure@vulncheck.com"},{"url":"https://git.gnunet.org/gnunet/libextractor/commit/6edfa653c048800e24a17f7e8cc2bb42659b8d01.html","source":"disclosure@vulncheck.com"},{"url":"https://github.com/Haitam-lazaar/libextractor-privesc","source":"disclosure@vulncheck.com"},{"url":"https://www.gnu.org/software/libextractor/","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/gnu-libextractor-before-1.16-privilege-escalation-via-libextractor-prefix","source":"disclosure@vulncheck.com"},{"url":"http://www.openwall.com/lists/oss-security/2026/09/25/25","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-100310","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}