Is CVE-2026-118371 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-118371?

CVE-2026-118371 has a CVSS v3 severity of LOW (3.7).

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CVE-2026-118371

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.