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TI-2026-46946 Aliases CVE-2026-65906GHSA-8m5q-x899-528f

In JetBrains TeamCity before 2026.1.2, 2025.11.6 сode execution via Kotlin DSL sandbox escape was possible

Priority MEDIUM 44CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-94.

Summary

In JetBrains TeamCity before 2026.1.2, 2025.11.6 сode execution via Kotlin DSL sandbox escape was possible

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00659 51st percentileScored 2026-11-07
Fix Fixed TeamCity (JetBrains): 2026.1.2, 2025.11.6

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 2026.1.2, 2025.11.62026.1.2, 2025.11.6Patch availableCNA
  • TeamCity VendorJetBrains Affected before 2026.1.2, 2025.11.6 Fixed in 2026.1.2, 2025.11.6 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*before 2025.11.6; 2026.1 to before 2026.1.2VulnerableJetBrains
  • cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:* Versions before 2025.11.6; 2026.1 to before 2026.1.2 Vulnerable ·JetBrains

Remediation

  • Fix · CNA TeamCity (JetBrains) Fixed in 2026.1.2, 2025.11.6

Fixed in the same release

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

  • Release ·

    JetBrains TeamCity 2026.1.2, 2025.11.6

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2026-46947 In JetBrains TeamCity before 2026.1.2, 2025.11.6 code execution in Git VCS roots was possiblePriority MEDIUM 42
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-65906
  2. 2026-10-03 Alias added: GHSA-8m5q-x899-528f
  3. 2026-10-09 EPSS moved to the 50th–90th percentile

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