{"schema":"threatline.record/2","record":{"id":"CVE-2026-109357","aliases":["GHSA-7cmx-65c5-8h8v"],"summary":"LibreNMS before 26.9.0 LDAP Filter Injection Authentication Bypass via Authorization Header","details":"LibreNMS before 26.9.0 contains an LDAP filter injection in ldap-authorization and ad-authorization modes because usernames are inserted unescaped into LDAP search filters and authentication only checks user existence. When REMOTE_USER is not forwarded, unauthenticated attackers can send a wildcard username via HTTP Basic Authorization (PHP_AUTH_USER) to match all users and groups and gain admin access.","categories":["Unclassified"],"product":"librenms","vendor":"librenms","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109357","source_modified_at":"2026-10-15T02:53:11.147Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"librenms","vendor":"librenms","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"26.9.0"},{"version":"26.9.0","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109357","source_modified_at":"2026-10-15T02:53:11.147Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"librenms","ecosystem":null},"version":"26.9.0","basis":"first unaffected version stated in the CVE record"}],"cvss":9.2,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00458,"percentile":0.38798,"score_date":"2026-10-23"},"published_at":"2026-10-12T16:05:37.653Z","modified_at":"2026-10-15T02:53:11.147Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-109357","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T02:53:11.147Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-109357","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/librenms/librenms/security/advisories/GHSA-7cmx-65c5-8h8v","tags":["exploit"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/librenms-before-26.9.0-ldap-filter-injection-authentication-bypass-via-authorization-header","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":"2026-10-15T02:52:45.546482Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T02:53:11.147Z","content_hash":"56d83f2ce919c310c4397ca638418e8f0773e41f8eeed67ee7645b011bd706fd"}}