CVE-2026-76149 Integer overflow in CorvusSKK
Medium 4.6
Published
Updated
Check this codebase for CVE-2026-76149 and fix it if it is affected.
What it is: CVE-2026-76149 is a medium-severity vulnerability in SASAKI Nobuyuki CorvusSKK, published on 26 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-76149 in the wild and no public exploit code.
Affected product: SASAKI Nobuyuki CorvusSKK. 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-2026-76149/ (Markdown: https://insights.sbomify.com/CVE-2026-76149/index.md)
An integer overflow in CorvusSKK allows malicious data to be written to a dictionary file, potentially compromising data integrity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-76149?
CVE-2026-76149 is a medium-severity vulnerability in SASAKI Nobuyuki CorvusSKK, published on 26 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
CorvusSKK contains an integer overflow vulnerability, which may allow malicious data to be written to a dictionary file.
Weakness: CWE-190
Which versions are affected by CVE-2026-76149?
How do I fix CVE-2026-76149?
No fix has been published for CVE-2026-76149 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-76149 being exploited?
There is no known exploitation of CVE-2026-76149 in the wild and no public exploit code.
Sources
Also known as GHSA-887v-ff5v-mfhj.