{"id":"CVE-2026-48038","aliases":["GHSA-q7cg-457f-vx79"],"url":"https://o3.security/vulnerability/CVE-2026-48038","summary":"joi: Uncaught RangeError on deeply nested input through recursive `link()` schemas","details":"joi is a schema description language and data validator for JavaScript. Prior to 17.13.4 and 18.2.1, denial of service is possible via an untrapped exception in services validating user-supplied JSON or object input with recursive link() schemas. When validate() is called without try/catch in a request handler, deeply nested input can trigger an unhandled RangeError and potentially crash the process; lower-impact paths using validateAsync() or try/catch produce a RangeError instead of a structured ValidationError. This issue is fixed in versions 17.13.4 and 18.2.1.","published":"2026-07-14T19:24:32.644Z","modified":"2026-08-12T03:51:24.546157396Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"epss":{"score":0.00524,"percentile":0.42047,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"joi","fixedVersion":"18.2.1"},{"ecosystem":"npm","name":"joi","fixedVersion":"17.13.4"}],"fix":{"url":"https://github.com/hapijs/joi/commit/97bd51de94d595a2d8949eb3bec0dbdd2f8a7a74","label":"hapijs/joi@97bd51d"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48038.json"},{"type":"ADVISORY","url":"https://github.com/hapijs/joi/security/advisories/GHSA-q7cg-457f-vx79"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48038"},{"type":"FIX","url":"https://github.com/hapijs/joi/commit/97bd51de94d595a2d8949eb3bec0dbdd2f8a7a74"},{"type":"FIX","url":"https://github.com/hapijs/joi/commit/fc146a628ab9cc250854407722d9f8738c9548e7"},{"type":"FIX","url":"https://github.com/hapijs/joi/pull/3113"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:24.546157396Z"}}