MEDIUM 6.3 NVD
CVE-2026-118371
LibreSSL through 4.4.0 contains a CRLF injection vulnerability in the libcrypto OCSP_sendreq_new() and OCSP_parse_url() functions, which write unvalidated reque
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.
References
- https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-4.4.0-relnotes.txt
- https://github.com/libressl/portable
- https://github.com/openbsd/src/blob/3903c41d301d66facec69f7bf776b182cbc5ed62/lib/libcrypto
- https://github.com/openbsd/src/commit/d3f7195f4849d8a699cea4a3a67677f4b3dc1591
- https://www.vulncheck.com/advisories/libressl-through-4.4.0-crlf-injection-via-ocsp-sendre
This medium severity vulnerability with a CVSS score of 6.3 was published on 2026-10-28 via NVD.
vulnfeed aggregates 17800 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.