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VulnerabilityPublished

CVE-2026-28196: JetBrains TeamCity · CWE-459

Affects JetBrains TeamCitySource CVE Database V5

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Not known to be exploited · CVSS 2.3 Low : upgrade to 2025.11.3 when convenient.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.1 base score
2.3Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2025.11.3
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade JetBrains TeamCity to 2025.11.3.

Affected software

ProductAffectedFixed in
JetBrainsTeamCityAffected
  • <2025.11.3
Fixed in
  • 2025.11.3

AI-suggested

To mitigate CVE-2026-28196, organizations should upgrade JetBrains TeamCity to version 2025.11.3 or later, where this issue is addressed. If you cannot patch yet, administrators should audit their TeamCity configurations to ensure versioned settings are enabled or verify that credentials files are securely managed and removed when no longer needed. Restrict local access to build servers to trusted personnel only and enforce strict file system permissions to prevent unauthorized reading of configuration files. Implement monitoring to detect unusual access patterns to sensitive files. Additionally, consider encrypting credentials at rest and using secure vault solutions integrated with TeamCity to avoid storing plaintext credentials on disk. Regularly review and rotate credentials used within CI/CD pipelines to minimize the impact of potential exposure. Finally, maintain a robust incident response plan to quickly address any detected credential leaks or unauthorized access.

Description

In JetBrains TeamCity before 2025.11.3 disabling versioned settings left a credentials config on disk

References

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