{"id":"CVE-2026-118371","aliases":[],"title":"LibreSSL through 4.4.0 CRLF Injection via OCSP_sendreq_new() Request Line","titleSource":"VulnCheck","descriptionSource":"VulnCheck","products":[{"vendor":"OpenBSD","name":"LibreSSL","platforms":[],"versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.4.0","versionType":"semver"}],"defaultStatus":"unaffected","source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-118371"}],"remediation":[],"description":"LibreSSL through 4.4.0 contains a CRLF injection vulnerability in the libcrypto OCSP_sendreq_new() and OCSP_parse_url() functions, which write unvalidated request paths into the OCSP POST request line. Attackers can embed carriage return and line feed characters in a certificate's Authority Information Access OCSP URI to inject HTTP headers or split requests sent to responders and proxies.","severity":"medium","score":6.3,"published":"2026-10-28T02:03:20.152Z","modified":"2026-10-28T02:03:20.152Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/openbsd/src/commit/d3f7195f4849d8a699cea4a3a67677f4b3dc1591","https://github.com/openbsd/src/blob/3903c41d301d66facec69f7bf776b182cbc5ed62/lib/libcrypto/ocsp/ocsp_ht.c#L184","https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-4.4.0-relnotes.txt","https://github.com/libressl/portable","https://www.vulncheck.com/advisories/libressl-through-4.4.0-crlf-injection-via-ocsp-sendreq-new-request-line"],"sources":[{"name":"CVE","id":"CVE-2026-118371","modified":"2026-10-28T02:03:20.152Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-118371"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.3},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","score":3.7}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T15:50:37.681Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}