# CVE-2026-11424: Server-Side Request Forgery in Altium Platform Design GraphQL Service Allows Information Disclosure

> Authenticated attackers can exploit SSRF in Altium's GraphQL service to access internal endpoints and retrieve sensitive data via HTTP GET requests.

- **Severity:** High 8.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N`)
- **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:** 5 Jun 2026
- **Updated:** 8 Jun 2026
- **Also known as:** GHSA-v97p-56pc-586g

## What is CVE-2026-11424?

CVE-2026-11424 is a high-severity server-side request forgery vulnerability in Altium 365, published on 5 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A server-side request forgery (SSRF) vulnerability exists in a GraphQL service component shared by Altium Enterprise Server and Altium 365. An authenticated user can submit a request whose input is treated as a URL by the server and used to issue an outbound HTTP GET request without URL validation or destination filtering. The response body is then returned to the user.

This allows an authenticated attacker to reach internal services and metadata endpoints that would not otherwise be accessible from the public network, and to retrieve their contents. The impact is information disclosure and internal infrastructure reconnaissance; the request primitive is limited to HTTP GET with no custom headers. Altium Enterprise Server is fixed in 8.1.1; the issue has been remediated in Altium 365 at the service level.

Weakness: CWE-918 (Server-Side Request Forgery), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-11424?


## How do I fix CVE-2026-11424?

No fix has been published for CVE-2026-11424 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-11424 being exploited?

There is no known exploitation of CVE-2026-11424 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11424 and fix it if it is affected.

What it is: CVE-2026-11424 is a high-severity server-side request forgery vulnerability in Altium 365, published on 5 Jun 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-2026-11424 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-2026-11424/ (Markdown: https://insights.sbomify.com/CVE-2026-11424/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11424
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11424
- OSV: https://osv.dev/vulnerability/CVE-2026-11424

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11424/
Summaries are generated and may contain mistakes; the official description above is the record.