CVE-2026-49379 In JetBrains TeamCity before 2026.1 credentials could be exposed in thread names
Medium 6.5
Published
Updated
Check this codebase for CVE-2026-49379 and fix it if it is affected.
What it is: CVE-2026-49379 is a medium-severity vulnerability in Jetbrains Teamcity, published on 29 May 2026.
Exploitation: There is no known exploitation of CVE-2026-49379 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-2026-49379/ (Markdown: https://insights.sbomify.com/CVE-2026-49379/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-49379?
CVE-2026-49379 is a medium-severity vulnerability in Jetbrains Teamcity, published on 29 May 2026.
Official description
In JetBrains TeamCity before 2026.1 credentials could be exposed in thread names
Weakness: CWE-522
Which versions are affected by CVE-2026-49379?
It affects 1 product.
Products include Jetbrains Teamcity.
How do I fix CVE-2026-49379?
No fix has been published for CVE-2026-49379 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-49379 being exploited?
There is no known exploitation of CVE-2026-49379 in the wild and no public exploit code.
Other vulnerabilities in Jetbrains Teamcity
Sources
Also known as GHSA-pwcg-7wj6-m8gv.