CVE-2026-33277 An OS command Injection issue exists in LogonTracer prior to v2.0.0.
High 8.7
Published
Updated
Check this codebase for CVE-2026-33277 and fix it if it is affected.
What it is: CVE-2026-33277 is a high-severity vulnerability in Japan Computer Emergency Response Team Coordination Center (JPCERT/CC) LogonTracer, published on 27 Apr 2026.
Exploitation: There is no known exploitation of CVE-2026-33277 in the wild and no public exploit code.
Affected product: Japan Computer Emergency Response Team Coordination Center (JPCERT/CC) LogonTracer. 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-2026-33277/ (Markdown: https://insights.sbomify.com/CVE-2026-33277/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-33277?
CVE-2026-33277 is a high-severity vulnerability in Japan Computer Emergency Response Team Coordination Center (JPCERT/CC) LogonTracer, published on 27 Apr 2026.
Official description
An OS command Injection issue exists in LogonTracer prior to v2.0.0. An arbitrary OS command may be executed by a logged-in user.
Weakness: CWE-78
Which versions are affected by CVE-2026-33277?
It affects 1 product.
Products include Jpcert Logontracer.
How do I fix CVE-2026-33277?
No fix has been published for CVE-2026-33277 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-33277 being exploited?
There is no known exploitation of CVE-2026-33277 in the wild and no public exploit code.
Other vulnerabilities in Japan Computer Emergency Response Team Coordination Center (JPCERT/CC) LogonTracer
Sources
Also known as GHSA-48m2-cqgp-4mvh.