CVE-2026-111919: Insufficient Session Expiration in go-vikunja vikunja
Description
Vikunja versions from 0.22.0 up to but not including 2.7.0 have a vulnerability where removed collaborators continue to receive project data via webhooks they created. This improper access revocation allows former collaborators to access task titles and descriptions, including new content created after their access was revoked.
CVSS v4.0
Score 7.1high
Affected software
go-vikunja
vikunja
pkg:golang/github.com/go-vikunja/vikunjaRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-111919 describes an insufficient session expiration vulnerability in Vikunja, a project management tool. Specifically, collaborators who have been removed from a project can still receive updates through webhooks they previously created. This flaw allows unauthorized access to project data such as task titles and descriptions even after access revocation, due to improper invalidation of webhook sessions or tokens. The affected versions are from 0.22.0 up to but not including 2.7.0.
Potential Impact
Unauthorized former collaborators can continue to receive sensitive project information via webhooks, including task titles and descriptions created after their removal. This leads to a confidentiality breach of project data.
Mitigation Recommendations
No explicit patch or remediation details are provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is applied, consider disabling or rotating webhooks created by collaborators who have been removed to prevent continued data leakage.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-17T12:18:55.463Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad3c6d42cdf04f656520819
Added to database: 10/17/2026, 19:04:52 UTC
Last enriched: 10/17/2026, 19:18:24 UTC
Last updated: 10/17/2026, 22:21:02 UTC
Views: 12
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