GHSA-4cv2-xc5f-px8h Denial of Service in extension "Code Highlight" (codehighlight)
Not scored
Published
Check this codebase for GHSA-4cv2-xc5f-px8h and fix it if it is affected.
What it is: GHSA-4cv2-xc5f-px8h is a denial of service vulnerability in brotkrueml/codehighlight, published on 15 May 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of GHSA-4cv2-xc5f-px8h in the wild and no public exploit code.
Affected packages and fixed versions:
- brotkrueml/codehighlight (Packagist): affected all versions; fixed in 2.5.0
- brotkrueml/codehighlight (Packagist): affected all versions; fixed in 2.5.0
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/GHSA-4cv2-xc5f-px8h/ (Markdown: https://insights.sbomify.com/GHSA-4cv2-xc5f-px8h/index.md)
Attackers can cause denial of service in the Code Highlight extension via ReDoS in the bundled Prism library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is GHSA-4cv2-xc5f-px8h?
GHSA-4cv2-xc5f-px8h is a denial of service vulnerability in brotkrueml/codehighlight, published on 15 May 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The codehighlight extension bundles a vulnerable version of the 3rd party JavaScript component “prism” which is known to be vulnerable against Regular expression Denial of Service (ReDoS).
Which versions are affected by GHSA-4cv2-xc5f-px8h?
2 open source packages ship an affected version, including brotkrueml/codehighlight.
| Package | Affected | Fixed in |
|---|---|---|
brotkrueml/codehighlight Packagist | All versions | 2.5.0 |
brotkrueml/codehighlight Packagist | All versions | 2.5.0 |
How do I fix GHSA-4cv2-xc5f-px8h?
Upgrade brotkrueml/codehighlight to 2.5.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GHSA-4cv2-xc5f-px8h being exploited?
There is no known exploitation of GHSA-4cv2-xc5f-px8h in the wild and no public exploit code.