CVE-2026-86502: CWE-306 in JetBrains IntelliJ IDEA
CVE-2026-86502 is a high-severity vulnerability in JetBrains IntelliJ IDEA prior to version 2026.2.2. It involves missing TLS and authentication on the IJent gRPC server, which allows local code execution on Remote Development hosts. This flaw is classified under CWE-306 (Missing Authentication for Critical Function).
AI Analysis
Technical Summary
The vulnerability CVE-2026-86502 affects JetBrains IntelliJ IDEA versions before 2026.2.2. The IJent gRPC server component lacked proper TLS encryption and authentication mechanisms, enabling an attacker with local access to execute code on Remote Development hosts. The CVSS 3.1 score is 8.4, reflecting high impact on confidentiality, integrity, and availability. No official patch or remediation level has been published yet, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation allows an unauthenticated local attacker to execute arbitrary code on Remote Development hosts, potentially compromising confidentiality, integrity, and availability of the affected system. This could lead to full system compromise in the context of remote development environments.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict local access to trusted users only and monitor for suspicious activity related to the IJent gRPC server. Avoid using vulnerable versions in untrusted environments.
CVE-2026-86502: CWE-306 in JetBrains IntelliJ IDEA
Description
CVE-2026-86502 is a high-severity vulnerability in JetBrains IntelliJ IDEA prior to version 2026.2.2. It involves missing TLS and authentication on the IJent gRPC server, which allows local code execution on Remote Development hosts. This flaw is classified under CWE-306 (Missing Authentication for Critical Function).
CVSS v3.1
Score 8.4high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-86502 affects JetBrains IntelliJ IDEA versions before 2026.2.2. The IJent gRPC server component lacked proper TLS encryption and authentication mechanisms, enabling an attacker with local access to execute code on Remote Development hosts. The CVSS 3.1 score is 8.4, reflecting high impact on confidentiality, integrity, and availability. No official patch or remediation level has been published yet, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation allows an unauthenticated local attacker to execute arbitrary code on Remote Development hosts, potentially compromising confidentiality, integrity, and availability of the affected system. This could lead to full system compromise in the context of remote development environments.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict local access to trusted users only and monitor for suspicious activity related to the IJent gRPC server. Avoid using vulnerable versions in untrusted environments.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-09-07T16:13:40.702Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9ee85bacd9273b49f0e44a
Added to database: 09/07/2026, 16:37:47 UTC
Last enriched: 09/07/2026, 16:52:15 UTC
Last updated: 09/07/2026, 17:26:17 UTC
Views: 6
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