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PatchSiren cyber security CVE debrief

CVE-2026-86501 JetBrains CVE debrief

A low-severity vulnerability was found in JetBrains IntelliJ IDEA before version 2026.2.2, where terminal command input could be written to the idea.log file. This issue could potentially lead to the logging of sensitive information. Defenders and administrators should assess exposure and verify logging configurations to ensure that sensitive information is not being written to log files. The vulnerability has a CVSS score of 2.8, indicating a low severity. However, it is essential to review and verify the logging configuration of IntelliJ IDEA instances to prevent potential security risks.

Vendor
JetBrains
Product
IntelliJ IDEA
CVSS
LOW 2.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-07
Original CVE updated
2026-09-07
Advisory published
2026-09-07
Advisory updated
2026-09-07

Who should care

Defenders and administrators responsible for JetBrains IntelliJ IDEA installations should assess exposure and verify logging configurations.

Why it matters

Defenders should care about this low-severity vulnerability in JetBrains IntelliJ IDEA because it could lead to potential logging of sensitive information. Administrators responsible for IntelliJ IDEA installations should assess exposure, verify logging configurations, and consider updating to version 2026.2.2 or later if possible.

  • Potential logging of sensitive information
  • Need to verify logging configuration
  • Possible review of user access to logging files

Technical summary

The vulnerability, with a CVSS score of 2.8, allows terminal command input to be written to the idea.log file in JetBrains IntelliJ IDEA before version 2026.2.2. This could lead to potential logging of sensitive information. The issue is considered low-severity but requires attention to prevent potential security risks. Defenders should review and verify the logging configuration of IntelliJ IDEA instances to ensure sensitive information is not being written to log files.

Defensive priority

Defenders should review and verify the logging configuration of IntelliJ IDEA instances to ensure sensitive information is not being written to log files.

Recommended defensive actions

  • Review and verify the logging configuration of IntelliJ IDEA instances
  • Ensure sensitive information is not being written to log files
  • Update to version 2026.2.2 or later if possible

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability, with the primary details coming from the JetBrains security issues page.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-86501 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-86501

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-86501 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-86501

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.