CVE-2026-88350 Integer overflow in n/a
Medium 6.2
Published
Updated
Check this codebase for CVE-2026-88350 and fix it if it is affected.
What it is: CVE-2026-88350 is a medium-severity vulnerability in n/a, published on 22 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-88350 in the wild and no public exploit code.
Affected product: n/a. 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-2026-88350/ (Markdown: https://insights.sbomify.com/CVE-2026-88350/index.md)
An integer overflow in MPack's string allocation functions can lead to memory corruption, potentially allowing denial of service or code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-88350?
CVE-2026-88350 is a medium-severity vulnerability in n/a, published on 22 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An integer overflow vulnerability exists in MPack 1.1.1 in mpack_node_cstr_alloc() and mpack_node_utf8_cstr_alloc().
Weakness: CWE-190
Which versions are affected by CVE-2026-88350?
How do I fix CVE-2026-88350?
No fix has been published for CVE-2026-88350 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-88350 being exploited?
There is no known exploitation of CVE-2026-88350 in the wild and no public exploit code.
Sources
Also known as GHSA-c2wm-8rj3-h9cx, UBUNTU-CVE-2026-88350.