CVE-2026-86504: CWE-829 in JetBrains IntelliJ IDEA
A vulnerability in JetBrains IntelliJ IDEA before version 2026.2.2 allows host-level code execution due to missing project-trust confirmation before building a Dev Container. This issue is identified as CWE-829 and has a high severity with a CVSS score of 7.8.
AI Analysis
Technical Summary
CVE-2026-86504 is a security vulnerability in JetBrains IntelliJ IDEA where the software fails to require project-trust confirmation before building a Dev Container. This omission allows an attacker to execute code at the host level. The vulnerability affects versions prior to 2026.2.2. The CVSS v3.1 base score is 7.8, indicating high severity, with attack vector local, low attack complexity, no privileges required, user interaction required, unchanged scope, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability can lead to arbitrary code execution on the host machine, potentially compromising confidentiality, integrity, and availability of the system. Because the attack requires local access and user interaction, the risk is mitigated somewhat by these constraints.
Mitigation Recommendations
No official patch or remediation level has been confirmed or published by the vendor at this time. Users should monitor JetBrains advisories for updates and apply the official fix once available. Until then, exercising caution when building Dev Containers and verifying project trust manually may reduce risk.
CVE-2026-86504: CWE-829 in JetBrains IntelliJ IDEA
Description
A vulnerability in JetBrains IntelliJ IDEA before version 2026.2.2 allows host-level code execution due to missing project-trust confirmation before building a Dev Container. This issue is identified as CWE-829 and has a high severity with a CVSS score of 7.8.
CVSS v3.1
Score 7.8high
Affected software
pkg:maven/com.jetbrains/intellij-ideaRun 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
CVE-2026-86504 is a security vulnerability in JetBrains IntelliJ IDEA where the software fails to require project-trust confirmation before building a Dev Container. This omission allows an attacker to execute code at the host level. The vulnerability affects versions prior to 2026.2.2. The CVSS v3.1 base score is 7.8, indicating high severity, with attack vector local, low attack complexity, no privileges required, user interaction required, unchanged scope, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability can lead to arbitrary code execution on the host machine, potentially compromising confidentiality, integrity, and availability of the system. Because the attack requires local access and user interaction, the risk is mitigated somewhat by these constraints.
Mitigation Recommendations
No official patch or remediation level has been confirmed or published by the vendor at this time. Users should monitor JetBrains advisories for updates and apply the official fix once available. Until then, exercising caution when building Dev Containers and verifying project trust manually may reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-09-07T16:13:41.211Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9ee85bacd9273b49f0e44e
Added to database: 09/07/2026, 16:37:47 UTC
Last enriched: 09/07/2026, 16:52:08 UTC
Last updated: 09/07/2026, 17:12:04 UTC
Views: 4
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