{"id":"EUVD-2026-62457","revision":"4f5a05b0620f472da0a64f3c23b29495","records":[{"revision":"4f5a05b0620f472da0a64f3c23b29495","observedAt":"2026-10-30T11:56:23.366+00:00","statement":{"source":"euvd","id":"EUVD-2026-62457","aliases":["CVE-2026-76216","GHSA-9xwc-vwww-qqmw","GHSA-32r8-5843-4qw2"],"title":"Vikunja through 2.4.0 contains a principal-type confusion vulnerability where LinkSharing principals with id N are treated as user principals with users.id == N at three permission checks lacking type guards. Attackers with a link-share JWT…","description":"Vikunja through 2.4.0 contains a principal-type confusion vulnerability where LinkSharing principals with id N are treated as user principals with users.id == N at three permission checks lacking type guards. Attackers with a link-share JWT can remove victims from teams, enumerate and delete victim bot users, or read team rosters by exploiting id collisions in the autoincrement space.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":7.7,"severity":null}],"references":["https://github.com/go-vikunja/vikunja/security/advisories/GHSA-32r8-5843-4qw2","https://www.vulncheck.com/advisories/vikunja-through-principal-type-confusion-via-linksharing"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-62457","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 19, 2026, 2:02:01 PM","dateUpdated":"Aug 20, 2026, 4:10:29 PM"},"relatedAdvisories":[],"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-2026-62457","identifiers":["EUVD-2026-62457","CVE-2026-76216","GHSA-9xwc-vwww-qqmw","GHSA-32r8-5843-4qw2"]},"retained":false,"historicalAffected":[]}],"coverage":[]}