CVE-2026-28194 Open redirect in TeamCity
Medium 4.3
Published
Updated
Check this codebase for CVE-2026-28194 and fix it if it is affected.
What it is: CVE-2026-28194 is a medium-severity vulnerability in Jetbrains Teamcity, published on 25 Feb 2026. 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 CVE-2026-28194 in the wild and no public exploit code.
Affected product: Jetbrains Teamcity. 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-2026-28194/ (Markdown: https://insights.sbomify.com/CVE-2026-28194/index.md)
Attackers can redirect users to malicious sites via the React project creation flow in JetBrains TeamCity.
- 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
- None listed
What is CVE-2026-28194?
CVE-2026-28194 is a medium-severity vulnerability in Jetbrains Teamcity, published on 25 Feb 2026. 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
In JetBrains TeamCity before 2025.11.3 open redirect was possible in the React project creation flow
Weakness: CWE-601
Which versions are affected by CVE-2026-28194?
It affects 1 product.
Products include Jetbrains Teamcity.
How do I fix CVE-2026-28194?
No fix has been published for CVE-2026-28194 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-28194 being exploited?
There is no known exploitation of CVE-2026-28194 in the wild and no public exploit code.
Other vulnerabilities in Jetbrains Teamcity
Sources
Also known as GHSA-c7jf-2rmf-hc7w.