CVE-2026-91982
Vikunja before 2.6.0 TOTP Secret Disclosure via API
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-522 |
| Vendor | go-vikunja |
| Product | vikunja |
| Published | Sep 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
go-vikunja / vikunja
0 < 2.6.0
References
Credits
🔍 0xcelien