{"id":"CVE-2026-92599","aliases":["GHSA-6h2x-m376-mqjq"],"url":"https://o3.security/vulnerability/CVE-2026-92599","summary":"Joi before 17.13.7 and 18.2.6 ReDoS via isoDate","details":"joi (npm package `joi`, hapi.js) versions >=17.2.0 <17.13.7 and >=18.0.0 <18.2.6 are vulnerable to regular expression denial of service in the `Joi.string().isoDate()` validation rule. One of the regular expressions the rule applies to the input is unanchored, so a valid ISO date followed by a long run of fractional-second digits causes the regex engine to restart its search from every position in the string, yielding time proportional to the square of the input length (about 1.4 s for 64 KB of digits and about 22 s for 256 KB). A remote attacker who can supply a string to an isoDate validation can stall the application with a single request. Fixed in 17.13.7 and 18.2.6; as a workaround, cap the length of the string before it reaches joi.","published":"2026-09-16T21:47:03.073Z","modified":"2026-10-28T02:30:43.058662165Z","cvss":null,"epss":{"score":0.00339,"percentile":0.27283,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"joi","fixedVersion":"17.13.7"},{"ecosystem":"npm","name":"joi","fixedVersion":"18.2.6"}],"fix":{"url":"https://github.com/hapijs/joi/pull/3143","label":"hapijs/joi#3143"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92599.json"},{"type":"ADVISORY","url":"https://github.com/hapijs/joi/security/advisories/GHSA-6h2x-m376-mqjq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92599"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/joi-before-17.13.7-and-18.2.6-redos-via-isodate"},{"type":"WEB","url":"https://github.com/hapijs/joi/pull/3143"},{"type":"WEB","url":"https://github.com/hapijs/joi/pull/3145"},{"type":"WEB","url":"https://github.com/hapijs/joi/commit/115e7b58d5eaaecc5e9b7093d41899ad6fb053ec"},{"type":"WEB","url":"https://github.com/hapijs/joi/commit/e70df424c367f2976db63b089504413744a21245"},{"type":"PACKAGE","url":"https://github.com/hapijs/joi"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:43.058662165Z"}}