{"apiVersion":"1.0","identifier":"CVE-2026-76216","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.","publishedAt":"2026-08-19T14:17:47","lastModifiedAt":"2026-08-20T17:19:42","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-76216","cvssScore":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00264,"riskScore":0.77,"affectedProduct":"Vikunja","affectedVersions":"<=2.4.0","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-76216","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-76216","en":"https://www.redsauce.net/en/cves/CVE-2026-76216","fr":"https://www.redsauce.net/fr/cves/CVE-2026-76216","pt":"https://www.redsauce.net/pt/cves/CVE-2026-76216","de":"https://www.redsauce.net/de/cves/CVE-2026-76216","sk":"https://www.redsauce.net/sk/cves/CVE-2026-76216","el":"https://www.redsauce.net/el/cves/CVE-2026-76216"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-76216"}}