EUVD-2026-78646
GHSA-c2g7-39fr-cp8q
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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CVSS VectorVendor: VulnCheck
Lifecycle Timeline
7DescriptionCVE.org
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.
AnalysisAI
An authenticated user of Vikunja before 2.6.0 can exhaust the memory of migration worker processes by launching a Planka import job that points at a server they control, which advertises a large number of individually size-compliant attachments. Because the migrator enforces per-file size limits but no aggregate memory budget, the worker is consumed and the instance becomes unavailable to every user on it. …
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Same technique Denial Of Service
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External POC / Exploit Code
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