Authorization bypass through user-controlled key in Leantime - #VU153274
Published: October 5, 2026
Vulnerability identifier: #VU153274
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to improper authorization in getMilestone JSON-RPC endpoint. A remote user can enumerate milestone IDs and access milestone data on the system.
Affected software
Leantime
Remediation
Install updates from vendor's website.
Leantime - update to 3.10.0