CVE-2026-118374
Medium · 5.9CVSS
5.9
EPSS
0.2%
Published
Oct 28, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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