Is CVE-2026-56764 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-56764?

CVE-2026-56764 has a CVSS v3 severity of LOW (3.7).

Back

CVE-2026-56764

Description

Hono before 4.11.10 contains a timing attack vulnerability in the basicAuth and bearerAuth middlewares due to non-constant-time string comparison in the timingSafeEqual function. Attackers can exploit early termination of string equality checks to infer valid credentials through precise timing measurements.