MEDIUM 5.3 NVD
CVE-2026-91982
Vikunja before 2.6.0 continues to expose the raw TOTP shared secret after enrollment through the GET /api/v1/user/settings/totp and /api/v1/user/settings/totp/q
Vikunja before 2.6.0 continues to expose the raw TOTP shared secret after enrollment through the GET /api/v1/user/settings/totp and /api/v1/user/settings/totp/qrcode endpoints without re-authentication. Attackers with a valid access token can read the secret, import it into their own authenticator, and generate valid codes indefinitely to defeat the second factor and enable account takeover.
References
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-88f6-4rjv-x774
- https://www.vulncheck.com/advisories/vikunja-before-2.6.0-totp-secret-disclosure-via-api
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-09-15 via NVD.
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