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Medium · 6.5 CVE-2026-66412 EUVD-2026-49063GHSA-p3jw-q4jg-x8w9

Leantime all versions prior to and 3.6.2 Broken Access Control via tickets.getMilestone JSON-RPC

Published Jul 27, 2026 · Updated Nov 8, 2026 · Assigned by VulnCheck

Description

Leantime 3.6.2 and prior contains a broken access control vulnerability that allows authenticated users to read milestone data from projects they are not assigned to by supplying arbitrary integer milestone IDs to the tickets.getMilestone JSON-RPC endpoint. Attackers can enumerate integer milestone IDs through the JSON-RPC API to access project planning information, milestone titles, descriptions, and timelines across all projects on the instance regardless of project membership.

Affected products

VendorProductAffectedFixed
Leantime Leantime ≤ 3.6.2 —

References