CVE-2026-85990highCWE-269CWE-862

CVE-2026-85990: high-severity vulnerability in leantime

Leantime: Any Authenticated User Can Self-Escalate to Admin via Unauthorized JSON-RPC Methods

Published · Updated

Follow this CVE+ Monitor Leantime+ Monitor leantime/leantime

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.8epss 0.4%
Leantime is an open source project management system. Prior to 3.10.0, for the provisionally grouped account-creation and plugin-management surfaces, Leantime's JSON-RPC dispatcher in app/Domain/Api/Controllers/Jsonrpc.php exposes public API service methods, while PermissionEnforcer::enforce allows methods that lack a RequiresPermission attribute. A low-privilege authenticated user with an ordinary browser session can send the required X-Requested-With: XMLHttpRequest header and call leantime.rpc.api.api.createApiKeyWithProjects, which reaches Api::createApiKeyWithProjects, with an attacker-chosen role to create an interactive administrator account. The same missing per-method authorization exposes Plugins::installPlugin, Plugins::enablePlugin, Plugins::disablePlugin, and Plugins::removePlugin to ordinary authenticated users, permitting unauthorized plugin management. The complete provisionally grouped issue is fixed in version 3.10.0.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Leantime · leantime
Related CVEs — leantime

In the same product, most dangerous first.

CVE-2023-45826MEDIUMAuthenticated SQL Injection in leantimeEPSS 2.1%CVE-2026-92772HIGHLeantime before 3.9.6 Unauthorized Plugin Installation via HTMXEPSS 0.5%CVE-2023-33961HIGHLeantime Stored Cross-site Scripting VulnerabilityEPSS 0.4%