CVE-2026-91970
Vikunja before 2.6.0 Resource Exhaustion via Planka Migration
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-770 |
| Vendor | go-vikunja |
| Product | vikunja |
| Published | Sep 15, 2026 |
| Last Updated | Sep 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
go-vikunja / vikunja
0 < 2.6.0
References
Credits
🔍 Zyy0530 🔍 Str1ckl4nd 🔍 7thParkk