{"id":"EUVD-2026-76992","revision":"af65bb1c8e7d4e95aa803589bcbf6f05","records":[{"revision":"af65bb1c8e7d4e95aa803589bcbf6f05","observedAt":"2026-11-11T17:03:48.86+00:00","statement":{"source":"euvd","id":"EUVD-2026-76992","aliases":["CVE-2026-90771","GHSA-wr44-6hxh-3jwq"],"title":"joi before versions 17.13.8 and 18.2.9 contains a prototype pollution vulnerability in the messages compilation function that accepts __proto__ as an error code. Attackers can supply __proto__ keys in custom messages to replace the returned…","description":"joi before versions 17.13.8 and 18.2.9 contains a prototype pollution vulnerability in the messages compilation function that accepts __proto__ as an error code. Attackers can supply __proto__ keys in custom messages to replace the returned object's prototype, breaking downstream code relying on Object.prototype methods.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.3,"severity":null}],"references":["https://github.com/hapijs/joi/issues/3150","https://github.com/hapijs/joi","https://github.com/hapijs/joi/blob/v18.2.8/lib/messages.js","https://github.com/hapijs/joi/commit/5b8333c9177e08b4ef4ed02903c2d657084e7afb","https://www.vulncheck.com/advisories/joi-before-17.13.8-and-18.2.9-prototype-pollution-via-messages"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-76992","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 13, 2026, 10:45:42 AM","dateUpdated":"Sep 24, 2026, 2:21:52 PM"},"relatedAdvisories":[{"id":"RHSA-2026:67610","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","vulnerabilityIds":["CVE-2026-90771"]},{"id":"RHSA-2026:67573","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","vulnerabilityIds":["CVE-2026-9029","CVE-2026-10601","CVE-2026-75838","CVE-2026-90771"]},{"id":"RHSA-2026:67605","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","vulnerabilityIds":["CVE-2026-9029","CVE-2026-10601","CVE-2026-61709","CVE-2026-90771"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-76992","identifiers":["EUVD-2026-76992","CVE-2026-90771","GHSA-wr44-6hxh-3jwq"]},"retained":false,"historicalAffected":[]}],"coverage":[]}