HIGH 8.2 NVD
CVE-2026-118374
LibreSSL ocspcheck through 4.4.0 contains a memory exhaustion vulnerability that allows malicious OCSP responders to exhaust memory by sending unbounded HTTP re
LibreSSL ocspcheck through 4.4.0 contains a memory exhaustion vulnerability that allows malicious OCSP responders to exhaust memory by sending unbounded HTTP responses. Attackers controlling the responder or intercepting plain HTTP AIA OCSP traffic can stream endless headers or body data to http_head_read() and http_body_read(), denying certificate status checks.
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/f6f428241d469cf434e60b73fc834d0448f068d5/usr.sbin/ocsp
- https://github.com/openbsd/src/commit/bf5da63f53179ef423d18c56d6da89eaefb56228
- https://github.com/openbsd/src/commit/de4274c56c9ace88232591d4c919d79281a8de59
This high severity vulnerability with a CVSS score of 8.2 was published on 2026-10-28 via NVD.
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