CVE-2021-43185 Other in n/a
Critical 9.8
Published
Updated
Check this codebase for CVE-2021-43185 and fix it if it is affected.
What it is: CVE-2021-43185 is a critical vulnerability in Jetbrains Youtrack, published on 9 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-43185 in the wild and no public exploit code.
Affected product: Jetbrains Youtrack. 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-2021-43185/ (Markdown: https://insights.sbomify.com/CVE-2021-43185/index.md)
Attackers can inject malicious Host headers in JetBrains YouTrack, potentially bypassing security controls or poisoning caches.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-43185?
CVE-2021-43185 is a critical vulnerability in Jetbrains Youtrack, published on 9 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
JetBrains YouTrack before 2021.3.23639 is vulnerable to Host header injection.
Weakness: CWE-74
Which versions are affected by CVE-2021-43185?
It affects 1 product.
Products include Jetbrains Youtrack.
How do I fix CVE-2021-43185?
No fix has been published for CVE-2021-43185 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-43185 being exploited?
There is no known exploitation of CVE-2021-43185 in the wild and no public exploit code.
Other vulnerabilities in Jetbrains Youtrack
Sources
Also known as GHSA-vv73-h85j-cqvw.