CVE-2026-54418: high-severity vulnerability in Leantime
Leantime - Missing Authorization on TwoFA JSON-RPC Methods Allows Cross-Account 2FA Secret Disclosure and Bypass
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 0.4%
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).
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Affected products
Leantime · LeantimeRelated CVEs — Leantime
In the same product, most dangerous first.
CVE-2020-5292HIGHTime-based blind injection in LeantimeEPSS 1.4%CVE-2026-59712HIGHLeantime - JSON-RPC API Broken Access Control via users.getUserEPSS 0.4%CVE-2026-66412HIGHLeantime all versions prior to and 3.6.2 Broken Access Control via tickets.getMilestone JSON-RPCEPSS 0.4%CVE-2026-66415HIGHLeantime Server-Side Request Forgery and Local File Inclusion in Blueprints::import()EPSS 0.4%CVE-2026-66414MEDIUMLeantime Open Redirect in Login Controller via redirectUrl ParameterEPSS 0.3%CVE-2026-66416HIGHLeantime CSRF Protection Globally Disabled by Omission of Laravel VerifyCsrfToken MiddlewareEPSS 0.3%
References
https://github.com/Leantime/leantime