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 2026-08-26.

How severe is CVE-2026-80196?

High severity. CVSS v3 base score is 7.5 out of 10.

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.

Published 2026-08-26 · last modified 2026-10-08.

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.

EPSS exploit prediction

EPSS: 0.005 (39.2th percentile), scored 2026-10-10.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001

Affected products

Kimai

Weakness classification (CWE)

CWE-640 — Weak Password Recovery Mechanism for Forgotten Password

References

github.com/kimai/kimai/security/advisories/GHSA-m492-gv72-xvxj (vendor-advisory)
www.vulncheck.com/advisories/kimai-before-2.58.0-authentication-bypass-via-pass… (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 2026-08-26.
How severe is CVE-2026-80196?: High severity. CVSS v3 base score is 7.5 out of 10.