CVE-2026-94018 NetX Duo Web HTTP server releases an uninitialized packet pointer on the PUT Content-Length underflow path
High 8.8
Published
Updated
Check this codebase for CVE-2026-94018 and fix it if it is affected.
What it is: CVE-2026-94018 is a high-severity vulnerability in Eclipse ThreadX - NetX Duo, published on 20 Oct 2026.
Exploitation: There is no known exploitation of CVE-2026-94018 in the wild and no public exploit code.
Affected product: Eclipse ThreadX - NetX Duo. 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-2026-94018/ (Markdown: https://insights.sbomify.com/CVE-2026-94018/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-94018?
CVE-2026-94018 is a high-severity vulnerability in Eclipse ThreadX - NetX Duo, published on 20 Oct 2026.
Official description
The Web add-on's HTTP server dereferences and releases an uninitialized pointer when it detects a `Content-Length` underflow while processing a `PUT` request. The condition is reachable by an unauthenticated remote client with a single malformed request.
Which versions are affected by CVE-2026-94018?
How do I fix CVE-2026-94018?
No fix has been published for CVE-2026-94018 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-94018 being exploited?
There is no known exploitation of CVE-2026-94018 in the wild and no public exploit code.
Sources
Also known as GHSA-wjxf-gjm5-jh5q.