Medium 5.4Published Oct 17, 2026

CVE-2026-111921Vikunja 0.13.0 before 2.7.0 Incorrect Authorization in Link Share Deletion

Updated under an hour ago (2026-10-19 06:30 UTC)

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Every CVE for go-vikunja vikunja

Exploited in the last 30 days

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.

CVSS: 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE): CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Received
Record last updated: Oct 17, 2026
First seen by InfoSec Signals: Oct 17, 2026

Affected products

Affected products

go-vikunja vikunja go_vikunja:vikunja (from the name)	from 0.13.0 before 2.7.0; 2.7.0 not affected	CNA record

References

https://github.com/go-vikunja/vikunja/security/advisories/GHSA-fmmf-xq98-g327vendor-advisory
https://www.vulncheck.com/advisories/vikunja-0.13.0-before-2.7.0-incorrect-authorization-in-link-share-deletionthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.