Medium severity4.3NVD Advisory· Published Sep 15, 2026· Updated Sep 17, 2026
CVE-2026-91982
CVE-2026-91982
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
code.vikunja.io/apiGo | < 2.6.0 | 2.6.0 |
Affected products
2- Range: <2.6.0
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-88f6-4rjv-x774ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-91982ghsaADVISORY
- github.com/go-vikunja/vikunja/pull/3688ghsaWEB
- github.com/go-vikunja/vikunja/releases/tag/v2.6.0ghsaWEB
- github.com/go-vikunja/vikunja/security/advisories/GHSA-88f6-4rjv-x774nvdWEB
- www.vulncheck.com/advisories/vikunja-before-2.6.0-totp-secret-disclosure-via-apinvdWEB
News mentions
1- Go Vikunja: Twelve Vulnerabilities Including Privilege Escalation and Auth Bypass Disclosed TogetherVypr Intelligence · Sep 15, 2026