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Vulnerabilities

Vulnerability · CVE-2025-52878

In JetBrains TeamCity before 2025.03.3 usernames were exposed to the users without proper permissions

Published Jun 23, 2025 · catalog updated Jun 23, 2025 · JetBrains TeamCity

Last checked Oct 26, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-52878. EPSS is 0.36%. Act only if a listed version of JetBrains TeamCity is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium4.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.36%
Remediation
Version ranges on file
Affected products
vendor JetBrains TeamCity 0 <2025.03.3

In JetBrains TeamCity before 2025.03.3 usernames were exposed to the users without proper permissions

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor JetBrains TeamCity 0 <2025.03.30 <2025.03.3

How to fix CVE-2025-52878

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-52878. EPSS is 0.36%. Act only if a listed version of JetBrains TeamCity is installed.

Which versions are affected?

Compare what you have installed with JetBrains TeamCity 0 <2025.03.3 0 <2025.03.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.36%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 23, 2025 · EUVD

    Detected

    In JetBrains TeamCity before 2025.03.3 usernames were exposed to the users without proper permissions

  2. Jun 23, 2025 · EUVD

    Updated

    In JetBrains TeamCity before 2025.03.3 usernames were exposed to the users without proper permissions

Sources

  • CVE.orgVulnerability recordCVE-2025-52878

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-52878

    30-day exploitation probability 0.36%

    first.org
  • EUVDVulnerability recordEUVD-2025-28476

    In JetBrains TeamCity before 2025.03.3 usernames were exposed to the users without proper permissions

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 26, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 20, 2026