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TI-2026-74811 Aliases CVE-2026-111095

Stored cross-site scripting in JetBrains TeamCity project overview

Priority LOW 36CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
High
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 is affected. A stored cross-site scripting flaw (CWE-79) in the classic project overview lets attackers store script that runs in other users' browsers. A remote attacker with low privileges needs a user to interact with the page, and the impact on confidentiality, integrity and availability is high.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

In JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 stored XSS in the classic project overview was possible

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00169 6th percentileScored 2026-11-07
Fix Fixed TeamCity (JetBrains): 2026.2, 2026.1.4, 2025.11.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
JetBrainsTeamCitybefore 2026.2, 2026.1.4, 2025.11.82026.2, 2026.1.4, 2025.11.8Patch availableCNA
  • TeamCity VendorJetBrains Affected before 2026.2, 2026.1.4, 2025.11.8 Fixed in 2026.2, 2026.1.4, 2025.11.8 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*before 2025.11.8; 2026.1 to before 2026.1.4VulnerableJetBrains
  • cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:* Versions before 2025.11.8; 2026.1 to before 2026.1.4 Vulnerable ·JetBrains

Remediation

Upgrade JetBrains TeamCity to 2026.2, 2026.1.4 or 2025.11.8, which fix the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA TeamCity (JetBrains) Fixed in 2026.2, 2026.1.4, 2025.11.8

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    JetBrains TeamCity 2026.2, 2026.1.4, 2025.11.8

    3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-74810 Remote code execution in JetBrains TeamCity via whitelist bypassPriority MEDIUM 43
    • TI-2026-74812 Stored cross-site scripting in JetBrains TeamCity build logPriority LOW 31
    Show all 3 records →

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-111095
  2. 2026-10-18 CVSS score added · NVD

References

Advisory 1

  • TI-2026-45031 Deserialization of untrusted data in JetBrains TeamCity KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18053 In JetBrains TeamCity before 2023.11.4 authentication bypass allowing to perform admin actions was possible KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-22884 In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18054 In JetBrains TeamCity before 2023.11.4 path traversal allowing to perform limited admin actions was possible KEVCVSS 3.1HIGH 7.3
  • TI-2024-15905 In JetBrains TeamCity before 2023.11.3 authentication bypass leading to RCE was possible CVSS 3.1CRITICAL 9.8
  • TI-2015-01192 JetBrains TeamCity 8 and 9 before 9.0.2 allows bypass of account-creation restrictions… CVSS 3.1MEDIUM 6.5
See all 282 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences