What is CVE-2019-18366?

CVE-2019-18366 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Incorrect Default Permissions. CVSS score: 5.3/10. Published 2019-10-31.

How severe is CVE-2019-18366?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Jetbrains Teamcity

CVE-2019-18366

In JetBrains TeamCity before 2019.1.2, secure values could be exposed to users with the "View build runtime parameters and data" permission.

Published 2019-10-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (64.3th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Jetbrains Teamcity

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

blog.jetbrains.com/blog/2019/10/29/jetbrains-security-bulletin-q3-2019/ (Vendor Advisory)

Frequently asked questions

What is CVE-2019-18366?: CVE-2019-18366 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Incorrect Default Permissions. CVSS score: 5.3/10. Published 2019-10-31.
How severe is CVE-2019-18366?: Medium severity. CVSS v3 base score is 5.3 out of 10.