# 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.

- **Severity:** Critical 9.4 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Jul 2026
- **Updated:** 20 Jul 2026
- **Also known as:** GHSA-m97g-7h77-r5pr

## 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.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## 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.

## Is CVE-2026-14439 being exploited?

There is no known exploitation of CVE-2026-14439 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-14439 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2026-14439 in the wild and no public exploit code.

Affected product: Altium 365. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-14439/ (Markdown: https://insights.sbomify.com/CVE-2026-14439/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-14439
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-14439
- OSV: https://osv.dev/vulnerability/CVE-2026-14439

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-14439/
Summaries are generated and may contain mistakes; the official description above is the record.