What is CVE-2026-15509?

CVE-2026-15509 is a medium-severity vulnerability in Leantime, classified under Incorrect Privilege Assignment. CVSS score: 6.3/10. Published 2026-07-12.

How severe is CVE-2026-15509?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Auth bypass in Leantime

CVE-2026-15509

A vulnerability has been found in Leantime up to 3.8.0. This impacts the function editUser/addUser of the component JSON-RPC Endpoint. The manipulation of the argument role leads to improper authorization. The attack is possible to be carr…

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

N/a Leantime — versions 3.0, 3.1, 3.2

Weakness classification (CWE)

CWE-266 — Incorrect Privilege Assignment
CWE-285 — Improper Authorization

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-15509?: CVE-2026-15509 is a medium-severity vulnerability in Leantime, classified under Incorrect Privilege Assignment. CVSS score: 6.3/10. Published 2026-07-12.
How severe is CVE-2026-15509?: Medium severity. CVSS v3 base score is 6.3 out of 10.