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CVE-2026-64811 JetBrains CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-23T12:18:36.663Z and has not been modified since then. CVE-2026-64811 is a high severity vulnerability in JetBrains IntelliJ IDEA before version 2026.2. The vulnerability allows for arbitrary code execution via development container configuration before granting project trust. The CVSS score for this vulnerability is 7.8, indicating a high severity level. Users of affected versions should prioritize patching or mitigating this vulnerability. Evidence from official sources indicates a high severity vulnerability in JetBrains IntelliJ IDEA before version 2026.2, allowing for arbitrary code execution via development container configuration before granting project trust. Defenders should verify the affected scope, severity, and vendor guidance to ensure proper mitigation. The CVE record was published on 2026-07-23T12:18:36.663Z and has not been modified since then. However, defenders should verify the affected scope, severity, and vendor guidance to ensure proper mitigation. Review compensating controls for exposed systems while remediation is scheduled and verified.

Vendor
JetBrains
Product
IntelliJ IDEA
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-23
Original CVE updated
2026-07-28
Advisory published
2026-07-23
Advisory updated
2026-07-28

Who should care

Users of JetBrains IntelliJ IDEA versions before 2026.2 should be aware of this vulnerability and take steps to mitigate it. This includes applying patches or updates to version 2026.2 or later, and implementing compensating controls to restrict access to development container configuration. Additionally, security teams and vulnerability management teams should review the affected scope and severity to ensure proper mitigation.

Technical summary

CVE-2026-64811 is a high severity vulnerability in JetBrains IntelliJ IDEA before version 2026.2. The vulnerability allows for arbitrary code execution via development container configuration before granting project trust. The CVSS score for this vulnerability is 7.8, indicating a high severity level. Users of affected versions should prioritize patching or mitigating this vulnerability.

Defensive priority

High priority due to high CVSS score of 7.8 and potential for arbitrary code execution.

Recommended defensive actions

  • Inventory and verify affected JetBrains IntelliJ IDEA versions
  • Apply vendor patches or updates to version 2026.2 or later
  • Implement compensating controls to restrict development container configuration access
  • Monitor for suspicious activity related to project trust settings
  • Review compensating controls for exposed systems while remediation is scheduled and verified

Evidence notes

Evidence from official sources indicates a high severity vulnerability in JetBrains IntelliJ IDEA before version 2026.2, allowing for arbitrary code execution via development container configuration before granting project trust. The CVE record was published on 2026-07-23T12:18:36.663Z and has not been modified since then. However, defenders should verify the affected scope, severity, and vendor guidance to ensure proper mitigation.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-64811 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-64811

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

  • CVE-2026-64811 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-64811

    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.