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Vikunja 2.6.0 Broken Access Control via Inherited Project Permissions

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

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
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