Auth bypass in Altium 365
CVE-2026-123184
An incorrect authorization vulnerability exists in the Altium 365 Git Service. The permission check performed when a user pushes to a project repository did not correctly evaluate the required access level, so the check passed for any user holding any level of access to the project. As a result, an authenticated user with view-only access to a project could write to that project's git repository. Read access was evaluated correctly and was not affected, and exploitation requires an authenticated account with existing access to the target project. The issue has been remediated in Altium 365 at the service level and no customer action is required. On-premise Altium Enterprise Server is not affected.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Altium 365 — versions unspecified
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-123184?
- CVE-2026-123184 is a high-severity vulnerability in Altium 365, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2026-11-05.
- How severe is CVE-2026-123184?
- High severity. CVSS v3 base score is 8.1 out of 10.