MEDIUM 6.0 NVD
CVE-2026-123521
Vikunja before 2.7.1 contains an improper restriction of excessive authentication attempts vulnerability that allows session holders to brute-force account pass
Vikunja before 2.7.1 contains an improper restriction of excessive authentication attempts vulnerability that allows session holders to brute-force account passwords via unthrottled re-authentication endpoints. Attackers with a stolen session can guess the password via /user/settings/totp/disable without lockout, then disable TOTP without a code for persistent account takeover.
References
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-49pj-52x6-8gpj
- https://www.vulncheck.com/advisories/vikunja-before-2.7.1-password-brute-force-via-totp-di
This medium severity vulnerability with a CVSS score of 6.0 was published on 2026-11-08 via NVD.
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