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CVE WatchNov 8, 2026

CVE-2026-123518

Vikunja before 2.7.1 contains an incorrect authorization vulnerability in TaskBucket.CanUpdate, which checks write access to the bucket's pr

CVSS

4.3

Medium

EPSS

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KEV

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Exploit Today

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0-100

Published: Nov 8, 2026 · Last modified: Nov 8, 2026 · CWE-639

EPSS · 30d

Not enough EPSS history yet.

Technical description

Vikunja before 2.7.1 contains an incorrect authorization vulnerability in TaskBucket.CanUpdate, which checks write access to the bucket's project and to the task separately but never verifies that both belong to the same project. Authenticated users with write access to two projects can move a task into another project's kanban bucket. This persists cross-project task_buckets rows that count toward bucket limits and, for done buckets, toggle the task's done state.

Official references
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