CVE-2026-111920
Vikunja 2.6.0 Broken Access Control via Inherited Project Permissions
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
Vikunja 2.6.0 contains a broken access control flaw in getProjectAccessForUser (pkg/models/project_access.go), which resolves a user's effective project permission as the maximum over the project tree, silently overriding explicit lower-permission shares on sub-projects. A collaborator with write access on a parent project but read-only access to a child project can modify the child project's tasks and content.
| CWE | CWE-269 |
| Vendor | go-vikunja |
| Product | vikunja |
| Published | Oct 17, 2026 |
Stay Ahead of the Next One
Get instant alerts for go-vikunja vikunja
Be the first to know when new medium vulnerabilities affecting go-vikunja vikunja are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
go-vikunja / vikunja
2.6.0
References
Credits
🔍 Viv3kGupt4