CVE-2026-66412highCWE-639

CVE-2026-66412: high-severity vulnerability in Leantime

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

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.1epss 0.4%
from disclosure to weaponsame day
Published on NVDJul 27
1st PoCJul 1
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
Leantime · Leantime
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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