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.

References

• https://github.com/honojs/hono/security/advisories/GHSA-gq3j-xvxp-8hrf
• https://www.vulncheck.com/advisories/hono-timing-attack-in-basicauth-and-bearerauth-middleware