CVE-2026-43966

unknowncovered by 1 sourcefirst seen 2026-06-09

CSIRTS triage

Other

What: HTTP response splitting can occur via non-VCHAR bytes in the cow_http_struct_hd escape_string function.
Who is affected: Deployments using the affected HTTP handling functionality.
Urgency: Remediation urgency is unknown due to lack of severity information.
Action: Monitor for updates and apply patches when available.

AI-assisted analysis generated from the source advisory — verify against the original.

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Low exploitation risk0.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 23% of all EPSS-scored CVEs.

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