CVE-2026-66412

Published: Jul 27, 2026Modified: Jul 28, 2026Deferred

7.1

Vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

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.

Related CWEs

CWE-639

Authorization Bypass Through User-Controlled Key

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

References (5)

https://github.com/Leantime/leantime/commit/68898eeb914882a21797523f2782914795bc67ae

Source: disclosure@vulncheck.com

https://github.com/Leantime/leantime/pull/3657

Source: disclosure@vulncheck.com

https://github.com/Leantime/leantime/security/advisories/GHSA-wv69-xr82-phr6

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/leantime-all-versions-prior-to-and-broken-access-control-via-tickets-getmilestone-json-rpc

Source: disclosure@vulncheck.com

https://github.com/Leantime/leantime/pull/3657

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.