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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-91983

Vikunja before 2.6.0 API Token Scope Bypass via expand Parameter

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Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

Vikunja before 2.6.0 contains an API token scope bypass vulnerability in task read endpoints where authorization fails to inspect query string parameters. Attackers with limited token scopes can use the expand parameter to access restricted data like comments, reactions, and time entries without proper permission verification.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

go-vikunja vikunja

Default version status: unaffected

  • 1.0.0 to < 2.6.0affected
  • 2.6.0unaffected
pkg:golang/code.vikunja.io/api

References