CVE-2026-40556 This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
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Published
Updated
Check this codebase for CVE-2026-40556 and fix it if it is affected.
What it is: CVE-2026-40556 is a vulnerability in nano, published on 28 Apr 2026.
Exploitation: There is no known exploitation of CVE-2026-40556 in the wild and no public exploit code.
Affected product: nano. 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-2026-40556/ (Markdown: https://insights.sbomify.com/CVE-2026-40556/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-40556?
CVE-2026-40556 is a vulnerability in nano, published on 28 Apr 2026.
Official description
This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Which versions are affected by CVE-2026-40556?
Linux distribution packages (1)
nano openSUSE:Tumbleweed | All versions | 9.1-1.1 |
How do I fix CVE-2026-40556?
Upgrade to a fixed version.
Is CVE-2026-40556 being exploited?
There is no known exploitation of CVE-2026-40556 in the wild and no public exploit code.
Sources
Also known as GHSA-9g7j-rcqf-cpcx, openSUSE-SU-2026:11120-1.