CVE-2026-66412 – Leantime all versions prior to and 3.6.2 Broken Access Control via tickets.getMilestone JSON-RPC

CVE ID :CVE-2026-66412

Published : July 27, 2026, 7:16 a.m. | 38 minutes ago

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.

Severity: 7.1 | HIGH

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