CVE-2026-106971 An integer overflow in the MessagePack\BufferUnpacker component of rybakit/msgpack versions prior to 0.11.0 allows attackers to cause a deni
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Published
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Check this codebase for CVE-2026-106971 and fix it if it is affected.
What it is: CVE-2026-106971 is a vulnerability in n/a, published on 28 Oct 2026.
Exploitation: There is no known exploitation of CVE-2026-106971 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-2026-106971/ (Markdown: https://insights.sbomify.com/CVE-2026-106971/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-106971?
CVE-2026-106971 is a vulnerability in n/a, published on 28 Oct 2026.
Official description
An integer overflow in the MessagePack\BufferUnpacker component of rybakit/msgpack versions prior to 0.11.0 allows attackers to cause a denial of service via crafted MessagePack input when the application runs on 32-bit PHP
Which versions are affected by CVE-2026-106971?
How do I fix CVE-2026-106971?
No fix has been published for CVE-2026-106971 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-106971 being exploited?
There is no known exploitation of CVE-2026-106971 in the wild and no public exploit code.
Sources
Also known as GHSA-w6qp-mj4x-9485.