{"id":"CVE-2026-56764","aliases":["GHSA-gq3j-xvxp-8hrf"],"url":"https://o3.security/vulnerability/CVE-2026-56764","summary":"Hono - Timing Attack in basicAuth and bearerAuth Middleware","details":"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.","published":"2026-07-15T11:25:32.814Z","modified":"2026-08-12T03:51:11.771267300Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"hono","fixedVersion":"4.11.10"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56764.json"},{"type":"ADVISORY","url":"https://github.com/honojs/hono/security/advisories/GHSA-gq3j-xvxp-8hrf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56764"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/hono-timing-attack-in-basicauth-and-bearerauth-middleware"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:11.771267300Z"}}