{"id":"CVE-2026-118371","published":"2026-10-28T03:17:13.443","lastModified":"2026-10-28T03:17:13.443","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.","cvssScore":3.7,"cvssSeverity":"LOW","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","cwes":["CWE-93"],"vendors":[],"products":[],"references":[{"url":"https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-4.4.0-relnotes.txt","tags":[]},{"url":"https://github.com/libressl/portable","tags":[]},{"url":"https://github.com/openbsd/src/blob/3903c41d301d66facec69f7bf776b182cbc5ed62/lib/libcrypto/ocsp/ocsp_ht.c#L184","tags":[]},{"url":"https://github.com/openbsd/src/commit/d3f7195f4849d8a699cea4a3a67677f4b3dc1591","tags":[]},{"url":"https://www.vulncheck.com/advisories/libressl-through-4.4.0-crlf-injection-via-ocsp-sendreq-new-request-line","tags":[]}],"exploitRefs":[{"url":"https://github.com/libressl/portable","tags":[]},{"url":"https://github.com/openbsd/src/blob/3903c41d301d66facec69f7bf776b182cbc5ed62/lib/libcrypto/ocsp/ocsp_ht.c#L184","tags":[]},{"url":"https://github.com/openbsd/src/commit/d3f7195f4849d8a699cea4a3a67677f4b3dc1591","tags":[]}],"hasPoc":true,"ai":null}