What is CVE-2026-54418?

CVE-2026-54418 is a high-severity vulnerability in Leantime, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-08-05.

How severe is CVE-2026-54418?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Leantime

CVE-2026-54418

Leantime through 3.6.2 exposes the JSON-RPC methods leantime.rpc.TwoFA.TwoFA.getSetupData, saveSecret, verifyAndEnable, and disable2FA, which act on a caller-supplied userId parameter with no ownership check, session pinning, or permission-attribute gate (unlike other RPC-exposed methods in the same dispatcher).

Vulnerability class: Broken Access Control

EPSS: 0.002 (16.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Leantime — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (third-party-advisory)

Frequently asked questions

What is CVE-2026-54418?: CVE-2026-54418 is a high-severity vulnerability in Leantime, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-08-05.
How severe is CVE-2026-54418?: High severity. CVSS v3 base score is 8.1 out of 10.