CVE-2026-111921
Medium
Description
Vikunja 0.13.0 before 2.7.0 contains an incorrect authorization vulnerability that allows project members with Write permission to delete admin-tier link shares because the delete permission check reads an unloaded share object. Attackers can send DELETE requests to the v1 or v2 projects shares endpoints with sequential share IDs to revoke admin links and invalidate existing share sessions.
SeverityMedium
CVSS5.4
Exploit probability—
ProductCode.vikunja.io/api
PublishedOct 17, 2026
First seenOct 17, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- code.vikunja.io/api2.7.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| code.vikunja.io/apiGo | 0.13.0 ≤ v < 2.7.0, No range specified | 2.7.0 |
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