CVE-2026-59712 Details
Description
Leantime's Users::getUser method in the JSON-RPC API lacks proper authorization checks, allowing authenticated users to retrieve full user credential rows including password hashes, TOTP secrets, and session tokens. Attackers can exploit this by calling users.getUser with arbitrary user IDs to enumerate all accounts and obtain credentials for offline password cracking, 2FA bypass, and session hijacking.
A vulnerability in Leantime's JSON-RPC API allows authenticated users to access sensitive user credentials through the Users::getUser method. This method lacks proper authorization checks, enabling the retrieval of full user data rows, including password hashes, TOTP secrets, and session tokens. Exploitation involves calling users.getUser with arbitrary user IDs, which can lead to credential enumeration for offline password cracking, bypassing two-factor authentication, and session hijacking. This issue affects Leantime versions through 3.4.4.
Users can update to Leantime version 3.9.7 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 6, 2026CISA-ADP
Assessed Jul 7, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Leantime/leantime | [email protected] | Source CodeVendor |
| https://github.com/Leantime/leantime/commit/4f2612d13e0e8a2093092a846b44506cf133b671 | [email protected] | Source CodeVendor |
| https://github.com/Leantime/leantime/issues/3556 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://www.vulncheck.com/advisories/leantime-credential-disclosure-via-unauthenticated-json-rpc-users-getuser-method | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Leantime | <= 3.4.4 (semver) |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 17, 2026 | CVE Modified | [email protected] |
| Jul 7, 2026 | CVE Modified | CISA-ADP |
| Jul 6, 2026 | New CVE Received | [email protected] |