Medium severity6.5NVD Advisory· Published Sep 15, 2026· Updated Sep 16, 2026
CVE-2026-91970
CVE-2026-91970
Description
Vikunja versions before 2.6.0 contain a resource exhaustion vulnerability in the Planka migrator that fails to enforce aggregate memory budgets during migration jobs. Authenticated attackers can submit migration requests pointing to attacker-controlled servers advertising numerous size-compliant attachments, exhausting worker memory and causing denial of service for all users.
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 | >= 2.5.0, < 2.6.0 | 2.6.0 |
Affected products
2- Range: <2.6.0
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-wq92-8x3r-fm38ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-91970ghsaADVISORY
- 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-wq92-8x3r-fm38nvdWEB
- www.vulncheck.com/advisories/vikunja-before-2.6.0-resource-exhaustion-via-planka-migrationnvdWEB
News mentions
1- Go Vikunja: Twelve Vulnerabilities Including Privilege Escalation and Auth Bypass Disclosed TogetherVypr Intelligence · Sep 15, 2026