Medium severity6.5NVD Advisory· Published Sep 15, 2026· Updated Sep 15, 2026

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Go Vikunja/Vikunjallm-fuzzy
Range: <2.6.0

Patches

Vulnerability mechanics

References

github.com/go-vikunja/vikunja/security/advisories/GHSA-wq92-8x3r-fm38nvd
www.vulncheck.com/advisories/vikunja-before-2.6.0-resource-exhaustion-via-planka-migrationnvd

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cvss	0.423
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000