Teamcity
CVE-2026-28195
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK
1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS 4.3 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability to compromise the affected system. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Insufficient authorization checks in JetBrains TeamCity before version 2025.11.3 permit project developers to modify build configuration parameters without proper access controls. An authenticated attacker with developer privileges could inject malicious parameters into build configurations, potentially altering build behavior or exposing sensitive information. No patch is currently available for this vulnerability.
Earlier versions of this analysis (1)
In JetBrains TeamCity before 2025.11.3 missing authorization allowed project developers to add parameters to build configurations [CVSS 4.3 MEDIUM]
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-862 (Missing Authorization). Affects Teamcity. In JetBrains TeamCity before 2025.11.3 missing authorization allowed project developers to add parameters to build configurations
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
In JetBrains TeamCity before 2025.11.3 missing authorization allowed project developers to add parameters to build configurations
Executive ViewAI
Organizations using JetBrains TeamCity should be aware of moderate risk from CVE-2026-28195, a missing authorization vulnerability rated CVSS 4.3. Attackers could gain access beyond their authorized level. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)CVE.org
Path traversal in JetBrains TeamCity before 2023.11.4 enables remote attackers to perform a limited set of administrativ
Remote code execution in JetBrains TeamCity before 2026.1.3 and 2025.11.7 allows unauthenticated attackers to execute ar
In JetBrains TeamCity before 2023.11.4 authentication bypass allowing to perform admin actions was possible. Rated criti
In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible. Rated criti
In JetBrains TeamCity before 2023.11.3 authentication bypass leading to RCE was possible. Rated critical severity (CVSS
Remote code execution in JetBrains TeamCity before 2026.1.2 and 2025.11.6 allows an attacker to escape the Kotlin DSL sa
Sandbox escape in JetBrains TeamCity's Kotlin DSL configuration mechanism allows an attacker who can supply or modify ve
JetBrains TeamCity versions prior to 2026.2, 2026.1.4, and 2025.11.8 contain a flaw in the password reset mechanism that
Remote code execution affects JetBrains TeamCity releases older than 2026.2, 2026.1.4, and 2025.11.8, where a type-white
In JetBrains TeamCity before 2024.07 access tokens could continue working after deletion or expiration. Rated critical s
In JetBrains TeamCity before 2022.04.7, 2022.10.6, 2023.05.6, 2023.11.5 authentication bypass was possible in specific e
In JetBrains TeamCity before 2023.05 bypass of permission checks allowing to perform admin actions was possible. Rated c
GitHub PoC
Exploit-DB