Vikunja versions before 2.6.0 fail to properly validate link-share tokens in the v2 API user search endpoints. Attackers with a read-only share link can enumerate project users via the projects endpoint and confirm arbitrary usernames exist…
Exact source revision recorded 25 Oct 2026 16:19:22 UTC. It does not establish the source's current position. Latest evidence.
nvd · CVE-2026-91981
PublishedNVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Deferred
Weakness classifications: CWE-200
Original publisher date fields
published: 2026-09-15T16:17:55.087
lastModified: 2026-09-21T19:17:16.220
No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.
Original source record · Cite this exact observation · Complete original publisher JSON