CVE-2026-49374: CWE-862 in JetBrains TeamCity
CVE-2026-49374 is a high-severity vulnerability in JetBrains TeamCity prior to version 2026.1. It involves improper permission checks that allow unauthorized exposure of build configuration parameters. The vulnerability is classified under CWE-862 (Improper Authorization). There is no vendor-provided patch or official remediation guidance available at this time. The CVSS 3.1 base score is 7.6, indicating a significant impact on confidentiality, integrity, and availability. No known exploits in the wild have been reported. Users of affected versions should monitor vendor advisories for updates.
AI Analysis
Technical Summary
This vulnerability in JetBrains TeamCity before version 2026.1 arises from improper permission checks (CWE-862) that expose build configuration parameters to unauthorized users. The CVSS 3.1 score of 7.6 reflects that the vulnerability can be exploited remotely over the network with low attack complexity and requires low privileges, without user interaction. Successful exploitation results in high confidentiality impact, low integrity impact, and low availability impact. No patch or official remediation level has been published by JetBrains yet, and the product is not a cloud service, so remediation depends on vendor updates.
Potential Impact
Unauthorized users may gain access to sensitive build configuration parameters, potentially exposing confidential information. The vulnerability impacts confidentiality significantly, with lesser impacts on integrity and availability. This could lead to information disclosure that may aid further attacks or compromise build processes.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to TeamCity instances and sensitive build configurations to trusted users only. Monitor JetBrains advisories for updates regarding patches or mitigations.
CVE-2026-49374: CWE-862 in JetBrains TeamCity
Description
CVE-2026-49374 is a high-severity vulnerability in JetBrains TeamCity prior to version 2026.1. It involves improper permission checks that allow unauthorized exposure of build configuration parameters. The vulnerability is classified under CWE-862 (Improper Authorization). There is no vendor-provided patch or official remediation guidance available at this time. The CVSS 3.1 base score is 7.6, indicating a significant impact on confidentiality, integrity, and availability. No known exploits in the wild have been reported. Users of affected versions should monitor vendor advisories for updates.
CVSS v3.1
Score 7.6high
Affected software
pkg:maven/org.jetbrains.teamcity/teamcity-serverRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in JetBrains TeamCity before version 2026.1 arises from improper permission checks (CWE-862) that expose build configuration parameters to unauthorized users. The CVSS 3.1 score of 7.6 reflects that the vulnerability can be exploited remotely over the network with low attack complexity and requires low privileges, without user interaction. Successful exploitation results in high confidentiality impact, low integrity impact, and low availability impact. No patch or official remediation level has been published by JetBrains yet, and the product is not a cloud service, so remediation depends on vendor updates.
Potential Impact
Unauthorized users may gain access to sensitive build configuration parameters, potentially exposing confidential information. The vulnerability impacts confidentiality significantly, with lesser impacts on integrity and availability. This could lead to information disclosure that may aid further attacks or compromise build processes.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to TeamCity instances and sensitive build configurations to trusted users only. Monitor JetBrains advisories for updates regarding patches or mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-05-29T18:07:56.420Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a19dc0ee29bf47b50ff8682
Added to database: 05/29/2026, 18:33:50 UTC
Last enriched: 06/05/2026, 21:21:30 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 58
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