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TI-2026-68682 Aliases CVE-2026-106218GHSA-p8v4-6cfg-7hh7

Sandbox escape in JetBrains TeamCity Kotlin DSL allows server RCE

Priority MEDIUM 43CWE-184Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Versions before 2026.1.3 and before 2025.11.7 of JetBrains TeamCity are affected. An incomplete list of disallowed inputs in the Kotlin DSL sandbox (CWE-184) allows a sandbox escape. An unauthenticated remote attacker can execute code on the TeamCity server, with high impact to confidentiality, integrity and availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

In JetBrains TeamCity before 2026.1.3 2025.11.7 kotlin DSL sandbox escape leading to RCE on the server was possible

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00319 25th percentileScored 2026-11-07
Fix Fixed TeamCity (JetBrains): 2026.1.3 2025.11.7

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 2026.1.3 2025.11.72026.1.3 2025.11.7Patch availableCNA
  • TeamCity VendorJetBrains Affected before 2026.1.3 2025.11.7 Fixed in 2026.1.3 2025.11.7 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*before 2025.11.7; 2026.1.1 to before 2026.1.3VulnerableJetBrains
  • cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:* Versions before 2025.11.7; 2026.1.1 to before 2026.1.3 Vulnerable ·JetBrains

Remediation

Update JetBrains TeamCity to version 2026.1.3 or 2025.11.7, which fix this flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA TeamCity (JetBrains) Fixed in 2026.1.3 2025.11.7

Timeline

  1. 2026-10-06 Threatist record created from CVE-2026-106218
  2. 2026-10-06 Alias added: GHSA-p8v4-6cfg-7hh7
  3. 2026-10-07 CISA SSVC decision points changed
  4. 2026-10-07 Priority changed: LOW → MEDIUM
  5. 2026-10-09 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