{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"libressl/portable","product":"LibreSSL","source":"CNA: VulnCheck","vendor":"OpenBSD","versions":[{"lessThanOrEqual":"4.4.0","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-118371","cwes":["CWE-93"],"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.","epss":{"date":"2026-11-02","percentile":0.02964,"score":0.00135},"exploits":[],"kev":null,"metrics":[{"score":6.3,"severity":"medium","source":"CNA: 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","version":"4.0"},{"score":3.7,"severity":"low","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}],"modifiedAt":1793709708334,"publishedAt":1793153000152,"references":[{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/openbsd/src/commit/d3f7195f4849d8a699cea4a3a67677f4b3dc1591"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/openbsd/src/blob/3903c41d301d66facec69f7bf776b182cbc5ed62/lib/libcrypto/ocsp/ocsp_ht.c#L184"},{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-4.4.0-relnotes.txt"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://github.com/libressl/portable"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/libressl-through-4.4.0-crlf-injection-via-ocsp-sendreq-new-request-line"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/openbsd/src/commit/d3f7195f4849d8a699cea4a3a67677f4b3dc1591"}],"revision":"4598d6a21d9902f218ce2a59f56b48e4d3c7a93da199d3c2e78c156222e4d16d","sources":[{"modifiedAt":1793709708334,"name":"CNA: VulnCheck","retrievedAt":1793711382257,"url":"https://www.cve.org/CVERecord?id=CVE-2026-118371"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793711402430,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-118371"}],"ssvc":{"assessedAt":1793709672233,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"LibreSSL through 4.4.0 CRLF Injection via OCSP_sendreq_new() Request Line","updatedAt":1793711402430}