{"schema":"threatline.record/2","record":{"id":"CVE-2026-118372","aliases":[],"summary":"LibreSSL ocspcheck through 4.4.0 CRLF Injection via AIA OCSP URL Path","details":"LibreSSL ocspcheck through 4.4.0 contains a CRLF injection vulnerability that allows attackers to inject HTTP headers by embedding CR/LF sequences in a certificate's AIA OCSP URI path. Because url2host() copies the path without rejecting control characters and http_open() places it in the POST request line, attackers can inject headers or split OCSP requests sent to the responder host.","categories":["Operating systems"],"product":"LibreSSL","vendor":"OpenBSD","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118372","source_modified_at":"2026-10-28T02:03:20.849Z","fetched_at":"2026-10-28T08:18:35.509402Z","product":"LibreSSL","vendor":"OpenBSD","versions":[{"version":"0","status":"affected","versionType":"semver","lessThanOrEqual":"4.4.0"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-28T02:03:20.849Z","modified_at":"2026-10-28T02:03:20.849Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-118372","fetched_at":"2026-10-28T08:18:35.509402Z","source_modified_at":"2026-10-28T02:03:20.849Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/openbsd/src/commit/6efdc4cce3fac9fa7208a9452f84de34c5a68e9f","tags":["patch"]},{"source":"CVE List","url":"https://github.com/openbsd/src/commit/3adb7688a5bcfb675fa6d8b10e242022d620a23d","tags":["patch"]},{"source":"CVE List","url":"https://github.com/openbsd/src/blob/17a8e44328ee2505d69723a126a390a526e50370/usr.sbin/ocspcheck/http.c#L344","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/openbsd/src/blob/17a8e44328ee2505d69723a126a390a526e50370/usr.sbin/ocspcheck/ocspcheck.c#L154","tags":["technical-description"]},{"source":"CVE List","url":"https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-4.4.0-relnotes.txt","tags":["release-notes"]},{"source":"CVE List","url":"https://github.com/libressl/portable","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/libressl-ocspcheck-through-4.4.0-crlf-injection-via-aia-ocsp-url-path","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-28T02:03:20.849Z","content_hash":"c37e1ffa8b3db2ca667b9c7f2a27af93c95094e708228a29bf19e3ed9409bbd7"}}