Vikunja 2.6.0 Broken Access Control via Inherited Project Permissions
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.
CVE-2026-111920
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-111920
vikunja
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "go-vikunja",
"product": "vikunja",
"versions": [
{
"status": "affected",
"version": "2.6.0",
"versionType": "semver"
}
],
"packageURL": "pkg:golang/code.vikunja.io/api",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-111920
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #34582 · Revision 1
- Added to Heist Feed
- Publisher date