CVE-2026-111096: CWE-79 in JetBrains TeamCity
Description
In JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 stored XSS in the classic build log was possible
CVSS v3.1
Score 6.7medium
Affected software
JetBrains
TeamCity
pkg:maven/org.jetbrains.teamcity/teamcity-serverRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-79) in JetBrains TeamCity allows stored XSS in the classic build log, enabling an attacker to inject malicious scripts that persist and execute when viewed. It affects versions prior to 2026.2, 2026.1.4, and 2025.11.8. The CVSS 3.1 vector indicates network attack vector, high attack complexity, low privileges required, user interaction required, unchanged scope, and high impact on confidentiality and integrity, with low impact on availability.
Potential Impact
Successful exploitation could lead to execution of malicious scripts in the context of the user viewing the build log, potentially compromising confidentiality and integrity of data accessible to that user. Availability impact is low. No known exploits in the wild are reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official patch or fix information is provided in the input data. Users should monitor JetBrains advisories for updates and consider restricting access to build logs until a fix is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-10-15T15:20:42.317Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad0f5fd2cdf04f65641fe10
Added to database: 10/15/2026, 15:49:17 UTC
Last enriched: 10/15/2026, 16:03:49 UTC
Last updated: 10/15/2026, 19:00:27 UTC
Views: 13
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