How severe is CVE-2019-18366?

CVE-2019-18366 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-18366 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18366?

CVE-2019-18366 affects Jetbrains Teamcity. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-18366?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-18366 published?

CVE-2019-18366 was published on 2019-10-31 and last updated on 2026-06-17.

CVE-2019-18366

CVE-2019-18366 is a medium-severity vulnerability in Jetbrains Teamcity with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-276.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Jetbrains Teamcity
Published: 2019-10-31
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is 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.
How severe is CVE-2019-18366?: CVE-2019-18366 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-18366 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18366?: CVE-2019-18366 affects Jetbrains Teamcity. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-18366?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-18366 published?: CVE-2019-18366 was published on 2019-10-31 and last updated on 2026-06-17.

References

https://blog.jetbrains.com/blog/2019/10/29/jetbrains-security-bulletin-q3-2019/

Affected products (1)

cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*

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