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CVE-2026-66412highCWE-639

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

41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 7.1epss 0.2%
from disclosure to weapon0 days
Published on NVDJul 27
1st PoCJul 1
exploitation probability
0.2%top 85% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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
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