Medium severity4.3NVD Advisory· Published Sep 15, 2026· Updated Sep 17, 2026
CVE-2026-91984
CVE-2026-91984
Description
Vikunja before 2.6.0 fails to validate that user-supplied project_view_id in task-position requests belongs to the task's project. Authenticated attackers can insert task position rows into arbitrary other tenant project views via POST or PUT task-position endpoints.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
code.vikunja.io/apiGo | < 2.6.0 | 2.6.0 |
Affected products
2- Range: <2.6.0
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-w39f-h553-h2mxghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-91984ghsaADVISORY
- github.com/go-vikunja/vikunja/commit/077dc4de79ce6f1ab59215a2c7bf9b30423685f2ghsaWEB
- github.com/go-vikunja/vikunja/pull/3688ghsaWEB
- github.com/go-vikunja/vikunja/releases/tag/v2.6.0ghsaWEB
- github.com/go-vikunja/vikunja/security/advisories/GHSA-w39f-h553-h2mxnvdWEB
- www.vulncheck.com/advisories/vikunja-before-2.6.0-broken-object-level-authorization-via-task-positionnvdWEB
News mentions
1- Go Vikunja: Twelve Vulnerabilities Including Privilege Escalation and Auth Bypass Disclosed TogetherVypr Intelligence · Sep 15, 2026