Description
Leantime JSON-RPC API through version 3.9.0 contains a missing authorization vulnerability in the JSON-RPC dispatcher in app/Domain/Api/Controllers/Jsonrpc.php. The dispatcher does not enforce authorization before invoking service-layer methods, allowing an authenticated user to call methods or act on resources outside their intended permissions. For example, the editOwn method accepts a user-supplied user ID without verifying that it belongs to the caller, allowing an attacker to modify another user's account and set a new password, resulting in account takeover. This vulnerability is distinct from CVE-2026-59712 and CVE-2026-15509 because the root cause is the lack of centralized authorization enforcement in the JSON-RPC dispatcher rather than the behavior of an individual exposed method.
Published: 2026-08-19
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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History

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 27 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200
CWE-639
CWE-862
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Thu, 20 Aug 2026 23:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Thu, 20 Aug 2026 13:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Thu, 20 Aug 2026 09:30:00 +0000

Type Values Removed Values Added
First Time appeared Leantime
Leantime json-rpc Api
Vendors & Products Leantime
Leantime json-rpc Api

Thu, 20 Aug 2026 00:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Wed, 19 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Description Leantime JSON-RPC API through version 3.9.0 contains a missing authorization vulnerability in the JSON-RPC dispatcher in app/Domain/Api/Controllers/Jsonrpc.php. The dispatcher does not enforce authorization before invoking service-layer methods, allowing an authenticated user to call methods or act on resources outside their intended permissions. For example, the editOwn method accepts a user-supplied user ID without verifying that it belongs to the caller, allowing an attacker to modify another user's account and set a new password, resulting in account takeover. This vulnerability is distinct from CVE-2026-59712 and CVE-2026-15509 because the root cause is the lack of centralized authorization enforcement in the JSON-RPC dispatcher rather than the behavior of an individual exposed method.
Title Leantime JSON-RPC API contains a missing authorization vulnerability
References

Subscriptions

Leantime Json-rpc Api
cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published:

Updated: 2026-08-27T15:49:51.556Z

Reserved: 2026-08-19T15:24:24.418Z

Link: CVE-2026-76647

cve-icon Vulnrichment

Updated: 2026-08-27T15:49:32.945Z

cve-icon NVD

Status : Received

Published: 2026-08-19T20:17:24.013

Modified: 2026-08-27T17:20:17.587

Link: CVE-2026-76647

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T19:30:16Z

Weaknesses