HIGHVulnerability
CVE-2026-76216
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.
Properties
- severity
- HIGH
- score
- 7.5
- cve_id
- CVE-2026-76216
- signal_observed_at
- 2026-09-16T21:37:02+00:00
- vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- published_at
- 2026-08-19T14:17:47.743
- last_modified
- 2026-09-16T20:18:30.540
Related Entities (2)
HAS_WEAKNESS (1)
→[Weakness]Authorization Bypass Through User-Controlled Key
DESCRIBED_BY (1)
→[Source]NVD
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