CVE-2026-35598
Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the CalDAV GetResource and GetResourcesByList methods fetch tasks by UID from the database without verifying that the authenticated user has access to the task's project. Any authenticated CalDAV user who knows (or guesses) a task UID can read the full task data from any project on the instance. This vulnerability is fixed in 2.3.0.
- CVSS 3.1
- 4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-26)
- CWE
- CWE-862
- Published
- Modified
- Record from
- the NVD, synced
Affected
- vikunja:vikunja
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-48ch-p4gq-x46x | Go | code.vikunja.io/api | <2.3.0 | 2.3.0 |
| GO-2026-5114 | Go | code.vikunja.io/api | all versions | no fix published |
References
- https://github.com/go-vikunja/vikunja/commit/879462d717351fe5d276ddec5246bdec31b41661
- https://github.com/go-vikunja/vikunja/pull/2579
- https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-48ch-p4gq-x46x
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-48ch-p4gq-x46x