CVE-2026-14439 Path Traversal in Altium Git Service Allows Remote Code Execution
Authenticated attackers can exploit path traversal in Altium Git Service to move files and achieve remote code execution, potentially accessing other tenants' data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-14439?
CVE-2026-14439 is a critical path traversal vulnerability in Altium 365, published on 1 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A path traversal vulnerability exists in the Git Service component shared by Altium Enterprise Server and Altium 365. The service accepts a sequence of post-clone file-manipulation operations that use user-supplied paths without validation, allowing an authenticated user with basic git access to move arbitrary files outside the intended repository area.
This file-move primitive can be used to place attacker-controlled script content into directories where it is later executed by the service, resulting in remote code execution under the Git Service account. On multi-tenant Altium 365 deployments, this could have allowed access to data belonging to other tenants on the same infrastructure node. Altium Enterprise Server is fixed in 8.1.1; the issue has been remediated in Altium 365 (commercial and government cloud) at the service level.
Which versions are affected by CVE-2026-14439?
How do I fix CVE-2026-14439?
No fix has been published for CVE-2026-14439 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-14439 being exploited?
There is no known exploitation of CVE-2026-14439 in the wild and no public exploit code.
Sources
Also known as GHSA-m97g-7h77-r5pr.