What is CVE-2026-49380?

CVE-2026-49380 is a low-severity vulnerability in Jetbrains Teamcity, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 3.1/10. Published 2026-05-29.

How severe is CVE-2026-49380?

Low severity. CVSS v3 base score is 3.1 out of 10.

Open Redirect in Jetbrains Teamcity

CVE-2026-49380

In JetBrains TeamCity before 2026.1 open redirect in the SAML plugin was possible

Vulnerability class: Open Redirect

Published 2026-05-29 · last modified 2026-07-22.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.002 (12.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.4% 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: 0.002 · 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-2026-49380?: CVE-2026-49380 is a low-severity vulnerability in Jetbrains Teamcity, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 3.1/10. Published 2026-05-29.
How severe is CVE-2026-49380?: Low severity. CVSS v3 base score is 3.1 out of 10.