Path Traversal in Altium Git Service Allows Remote Code Execution
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Altium Enterprise Server (Altium) Fixed in 8.1.1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-14439
- 2026-10-03 Alias added: GHSA-m97g-7h77-r5pr
More Altium vulnerabilities
- TI-2026-09862 Path Traversal in Altium Vault ScriptsController Allows Unauthenticated Remote Code Execution CVSS 4.0CRITICAL 10.0
- TI-2026-62547 Server-Side Request Forgery in Altium Enterprise Server UnifiedLogin Service Allows Unauthenticated System Compromise CVSS 4.0CRITICAL 10.0
- TI-2026-09855 Path Traversal in Altium Enterprise Server NIS Allows Unauthenticated Arbitrary File Write and File Read CVSS 4.0CRITICAL 10.0
- TI-2026-09854 Path Traversal in Altium Enterprise Server Vault UploadController Allows Arbitrary File Write CVSS 4.0CRITICAL 9.4
- TI-2026-09851 Path traversal in Altium Enterprise Server CVSS 4.0CRITICAL 10.0
- TI-2026-08047 Unauthenticated SOAP Endpoint in Altium 365 SearchService Allows Cross-Tenant Data Exfiltration and Index Destruction CVSS 4.0CRITICAL 10.0
Sources
- CVE-2026-14439 · CVE Program
- CVE-2026-14439 · NVD
- FIRST EPSS
- GHSA-m97g-7h77-r5pr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences