What is CVE-2019-12157?

CVE-2019-12157 is a critical-severity vulnerability in Jetbrains Teamcity, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2019-10-02.

How severe is CVE-2019-12157?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Improper input validation in Jetbrains Teamcity

CVE-2019-12157

In JetBrains UpSource versions before 2018.2 build 1293, there is credential disclosure via RPC commands.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2019-10-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (78.5th percentile), scored 2026-10-22.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Jetbrains Teamcity
Jetbrains Upsource — versions 2018.2

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

blog.jetbrains.com/blog/2019/09/26/jetbrains-security-bulletin-q2-2019/ (Vendor Advisory)

Frequently asked questions

What is CVE-2019-12157?: CVE-2019-12157 is a critical-severity vulnerability in Jetbrains Teamcity, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2019-10-02.
How severe is CVE-2019-12157?: Critical severity. CVSS v3 base score is 9.8 out of 10.