Vulnerability in Kimai
CVE-2026-80196
Kimai before 2.58.0 contains an authentication bypass vulnerability where password reset links remain valid after password changes because the LoginLink signature covers only the user id, not the password hash. Attackers who intercept or cache a password reset link can use it up to 2 additional times within a 1-hour window to log in as the user even after the legitimate user has changed their password.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-m492-gv72-xvxj) (vendor-advisory)
- VulnCheck Advisory: Kimai before 2.58.0 Authentication Bypass via Password Reset Link (third-party-advisory)
Frequently asked questions
- What is CVE-2026-80196?
- CVE-2026-80196 is a high-severity vulnerability in Kimai, classified under Weak Password Recovery Mechanism for Forgotten Password. CVSS score: 7.5/10. Published 2026-08-25.
- How severe is CVE-2026-80196?
- High severity. CVSS v3 base score is 7.5 out of 10.