CVE-2019-12156

5.3 mediumEPSS 0.9%

Medium (5.3) in jetbrains upsource. EPSS 0.9% chance of exploitation in the next 30 days.

Server metadata could be exposed because one of the error messages reflected the whole response back to the client in JetBrains TeamCity versions before 2018.2.5 and UpSource versions before 2018.2 build 1293.

Severity

CVSS 3.1

5.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 59% of CVEs (scores of 2026-10-31)
CWE: CWE-209
Published: 2019-10-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

jetbrains:upsource

References

https://blog.jetbrains.com/blog/2019/09/26/jetbrains-security-bulletin-q2-2019/
https://blog.jetbrains.com/blog/2019/09/26/jetbrains-security-bulletin-q2-2019/

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