CVE-2026-111920
Medium · CVSS 5.3Published 2026-10-17
CVSS
5.3
Medium
EPSS
—
exploit probability
Active Exploit
No
not yet listed
What is CVE-2026-111920?
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.
CVSS Score Explained
CVSS 5.3 is Medium severity. Exploitation usually requires some specific conditions (local access, user interaction, or a particular config). Still worth patching in your next maintenance window.
EPSS Exploitation Probability
No EPSS score yet — model needs more data on this CVE.
References & Patches
- ›https://github.com/go-vikunja/vikunja/security/advisories/GHSA-pjr3-86v4-5p7w
- ›https://www.vulncheck.com/advisories/vikunja-2.6.0-broken-access-control-via-inherited-project-permissions
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