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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Leantime Leantime unaffected
Version Status Constraints
0 affected ≤ 3.4.4

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Project Subscriptions

Vendors Products
Leantime Subscribe
Leantime Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/Leantime/leantime cve-icon
https://github.com/Leantime/leantime/commit/4f2612d13e0e8a2093092a846b44506cf133b671 cve-icon
https://github.com/Leantime/leantime/issues/3556 cve-icon
https://www.vulncheck.com/advisories/leantime-credential-disclosure-via-unauthenticated-json-rpc-users-getuser-method cve-icon
History

Mon, 06 Jul 2026 21:15:00 +0000

Type Values Removed Values Added
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.
Title Leantime - Credential Disclosure via Unauthenticated JSON-RPC users.getUser Method
First Time appeared Leantime
Leantime leantime
Weaknesses CWE-639
CPEs cpe:2.3:a:leantime:leantime:*:*:*:*:*:*:*:*
Vendors & Products Leantime
Leantime leantime
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-07-06T20:43:50.296Z

Reserved: 2026-07-06T15:31:46.188Z

Link: CVE-2026-59712

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

No data.

Weaknesses