Vikunja 1.0.0-rc0 before 2.7.0 Cross-Tenant Task Position Writes via Saved Filter Creation
Vikunja from 1.0.0-rc0 before 2.7.0 contains an improper authorization vulnerability in RecalculateTaskPositions that allows authenticated users with zero accessible projects to write task_positions rows for all tasks instance-wide. Attackers can delete their Inbox after repointing default_project_id, then create empty-filter saved filters to persist cross-tenant references and amplify writes for denial of service.
CVE-2026-111918
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-2026-111918
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": "1.0.0-rc0",
"lessThan": "2.7.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "2.7.0",
"versionType": "semver"
}
],
"packageURL": "pkg:golang/code.vikunja.io/api",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-111918
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #38972 · Revision 1
- Added to Heist Feed
- Publisher date