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CVE-2026-111921 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-fmmf-xq98-g327	CISA-ADP	AdvisoryExploitTechnical AnalysisVendor
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-fmmf-xq98-g327	[email protected]	AdvisoryExploitTechnical AnalysisVendor
https://www.vulncheck.com/advisories/vikunja-0.13.0-before-2.7.0-incorrect-authorization-in-link-share-deletion	[email protected]	AdvisoryVendor

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-863	Incorrect Authorization	[email protected]

Affected Products

Product	Versions
Vikunja	>= 0.13.0, <= 2.6.0 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation No remediation found in references.

Change History

2 change records found show changes

Date	Action	Recorded By
Oct 21, 2026	CVE Modified	CISA-ADP
Oct 17, 2026	New CVE Received	[email protected]