{"schema":"threatline.record/2","record":{"id":"CVE-2026-100310","aliases":[],"summary":"GNU libextractor before 1.16 Privilege Escalation via LIBEXTRACTOR_PREFIX","details":"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.","categories":["Unclassified"],"product":"libextractor","vendor":"GNU","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100310","source_modified_at":"2026-09-30T00:05:50.934Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"libextractor","vendor":"GNU","versions":[{"version":"0","lessThan":"1.16","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100310","source_modified_at":"2026-09-30T00:05:50.934Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"libextractor","ecosystem":null},"version":"1.16","basis":"first unaffected version stated in the CVE record"}],"cvss":7.3,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00136,"percentile":0.02793,"score_date":"2026-10-23"},"published_at":"2026-09-25T19:38:28.517Z","modified_at":"2026-09-30T00:05:50.934Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-100310","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-30T00:05:50.934Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-100310","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/Haitam-lazaar/libextractor-privesc","tags":["exploit","third-party-advisory"]},{"source":"CVE List","url":"https://git.gnunet.org/gnunet/libextractor/commit/6edfa653c048800e24a17f7e8cc2bb42659b8d01.html","tags":["patch"]},{"source":"CVE List","url":"https://ftp.gnu.org/gnu/libextractor/","tags":["release-notes"]},{"source":"CVE List","url":"https://www.gnu.org/software/libextractor/","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/gnu-libextractor-before-1.16-privilege-escalation-via-libextractor-prefix","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"total","assessed_at":"2026-09-30T00:05:41.549904Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-30T00:05:50.934Z","content_hash":"f9851fd1631327ecaae041f82cfcf6d53a7156a3f9d2267d6f84f0eb0a154173"}}