MEDIUM 5.3 NVD
CVE-2026-91983
Vikunja before 2.6.0 contains an API token scope bypass vulnerability in task read endpoints where authorization fails to inspect query string parameters. Attac
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.
References
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-9rg3-v78m-26q8
- https://www.vulncheck.com/advisories/vikunja-before-2.6.0-api-token-scope-bypass-via-expan
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-9rg3-v78m-26q8
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-09-15 via NVD.
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