JetBrains TeamCity up to 2025.11.1 exposure of sensitive information through environmental variables

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in JetBrains TeamCity up to 2025.11.1. It has been declared as problematic. The impacted element is an unknown function. Such manipulation leads to exposure of sensitive information through environmental variables. This vulnerability is uniquely identified as CVE-2026-49377. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in JetBrains TeamCity up to 2025.11.1. It has been rated as problematic. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a exposure of sensitive information through environmental variables vulnerability. Using CWE to declare the problem leads to CWE-526. The product uses an environment variable to store unencrypted sensitive information. Impacted is confidentiality. CVE summarizes:

In JetBrains TeamCity before 2025.11.2 exposure of sensitive data via default agent parameters

The advisory is shared for download at jetbrains.com. This vulnerability is handled as CVE-2026-49377 since 05/29/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.002.

Upgrading to version 2025.11.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1758). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • JetBrains TeamCity

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (JetBrains): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Exposure of sensitive information through environmental variables
CWE: CWE-526 / CWE-200 / CWE-284
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: TeamCity 2025.11.2

Timelineinfo

05/29/2026 Advisory disclosed
05/29/2026 +0 days CVE reserved
05/29/2026 +0 days VulDB entry created
06/02/2026 +4 days VulDB entry last update

Sourcesinfo

Advisory: jetbrains.com
Status: Confirmed

CVE: CVE-2026-49377 (🔒)
GCVE (CVE): GCVE-0-2026-49377
GCVE (VulDB): GCVE-100-367352
CERT Bund: WID-SEC-2026-1758 - JetBrains TeamCity: Mehrere Schwachstellen

Entryinfo

Created: 05/29/2026 21:18
Updated: 06/02/2026 02:51
Changes: 05/29/2026 21:18 (63), 06/02/2026 02:51 (7)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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