CVE-2026-15510 Leantime CVE debrief

Who should care

Defenders of Leantime installations should review and apply patches to address the improper authorization vulnerability. This includes operators, platform administrators, vulnerability management teams, and security teams who need to assess the impact and apply mitigations.

Technical summary

CVE-2026-15510 is an improper authorization vulnerability in the Setting::saveSetting function of Leantime up to 3.8.0. The vulnerability allows for improper authorization and can be exploited remotely. The attack vector is network-based with low attack complexity and requires low privileges. The technical impact is low, and the CVSS score is 2.1. Defenders should review and apply patches or mitigations provided by the vendor to address the vulnerability.

Defensive priority

Apply patches or mitigations provided by the vendor to address the improper authorization vulnerability.

Recommended defensive actions

• Inventory Leantime installations to identify potential exposure.
• Apply patches or mitigations provided by the vendor.
• Monitor for suspicious activity related to the Setting::saveSetting function.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further investigation and verification are necessary to fully understand the impact and scope of the vulnerability. The Setting::saveSetting function in Leantime up to 3.8.0 is affected, and defenders should verify the affected scope and apply patches or mitigations provided by the vendor. Evidence limits suggest that additional information may be available from the vendor or other sources, but it has not been verified.

Official resources