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/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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-88f6-4rjv-x774

Configurations

No configuration.

History

17 Sep 2026, 16:18

Type	Values Removed	Values Added
References	~~() https://github.com/go-vikunja/vikunja/security/advisories/GHSA-88f6-4rjv-x774 -~~	() https://github.com/go-vikunja/vikunja/security/advisories/GHSA-88f6-4rjv-x774 -

Information

Published : 2026-09-15 16:17

Updated : 2026-09-17 16:18

NVD link : CVE-2026-91982

Mitre link : CVE-2026-91982

CVE.ORG link : CVE-2026-91982

JSON object : View

Products Affected

No product.

CWE

CWE-522

Insufficiently Protected Credentials

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