What is CVE-2020-11688?

CVE-2020-11688 is a high-severity vulnerability in Jetbrains Teamcity, classified under Insufficient Session Expiration. CVSS score: 7.5/10. Published 2020-04-22.

How severe is CVE-2020-11688?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Jetbrains Teamcity

CVE-2020-11688

In JetBrains TeamCity before 2019.2.1, the application state is kept alive after a user ends his session.

Published 2020-04-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.010 (61.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Jetbrains Teamcity

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

blog.jetbrains.com/blog/2020/04/22/jetbrains-security-bulletin-q1-2020/ (Vendor Advisory)

Frequently asked questions

What is CVE-2020-11688?: CVE-2020-11688 is a high-severity vulnerability in Jetbrains Teamcity, classified under Insufficient Session Expiration. CVSS score: 7.5/10. Published 2020-04-22.
How severe is CVE-2020-11688?: High severity. CVSS v3 base score is 7.5 out of 10.