What is CVE-2026-28194?

CVE-2026-28194 is a medium-severity vulnerability in Jetbrains Teamcity, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.3/10. Published 2026-02-25.

How severe is CVE-2026-28194?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Open Redirect in Jetbrains Teamcity

CVE-2026-28194

In JetBrains TeamCity before 2025.11.3 open redirect was possible in the React project creation flow

Vulnerability class: Open Redirect

Published 2026-02-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Jetbrains Teamcity — versions 0

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

www.jetbrains.com/privacy-security/issues-fixed/ (Vendor Advisory)

Frequently asked questions

What is CVE-2026-28194?: CVE-2026-28194 is a medium-severity vulnerability in Jetbrains Teamcity, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.3/10. Published 2026-02-25.
How severe is CVE-2026-28194?: Medium severity. CVSS v3 base score is 4.3 out of 10.