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.
History

Thu, 22 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 20 Oct 2026 16:15:00 +0000

Type Values Removed Values Added
First Time appeared Go-vikunja
Go-vikunja vikunja
Vendors & Products Go-vikunja
Go-vikunja vikunja

Sat, 17 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
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.
Title Vikunja 0.13.0 before 2.7.0 Incorrect Authorization in Link Share Deletion
First Time appeared Vikunja
Vikunja vikunja
Weaknesses CWE-863
CPEs cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*
Vendors & Products Vikunja
Vikunja vikunja
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-17T18:46:35.329Z

Updated: 2026-10-21T21:44:01.251Z

Reserved: 2026-10-17T12:19:42.358Z

Link: CVE-2026-111921

cve-icon Vulnrichment

Updated: 2026-10-21T21:43:56.160Z

cve-icon NVD

Status : Deferred

Published: 2026-10-17T19:16:34.820

Modified: 2026-10-21T22:16:48.260

Link: CVE-2026-111921

cve-icon Redhat

No data.