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CVE-2026-64808 JetBrains CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-23T12:18:36.323Z and has not been modified since then. In JetBrains PhpStorm before 2026.2, a vulnerability allows for arbitrary code execution before granting project trust via project tooling. This issue has been addressed in version 2026.2.1. The vulnerability has a CVSS score of 8.4, indicating high severity. Users should review project trust settings and ensure proper configuration to mitigate this risk. PhpStorm users, particularly those who work with untrusted projects or have project trust enabled, should be aware of this vulnerability and take steps to mitigate it. This includes reviewing project configurations, updating to version 2026.2.1 or later, and monitoring for suspicious activity in PhpStorm projects. Security teams and vulnerability management teams should also be aware of this issue and plan for updates or mitigations as necessary.

Vendor
JetBrains
Product
PhpStorm
CVSS
HIGH 8.4
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

PhpStorm users, particularly those who work with untrusted projects or have project trust enabled, should be aware of this vulnerability and take steps to mitigate it. This includes reviewing project configurations, updating to version 2026.2.1 or later, and monitoring for suspicious activity in PhpStorm projects. Security teams and vulnerability management teams should also be aware of this issue and plan for updates or mitigations as necessary.

Technical summary

In JetBrains PhpStorm before 2026.2, a vulnerability allows for arbitrary code execution before granting project trust via project tooling. This issue has been addressed in version 2026.2.1. The vulnerability has a CVSS score of 8.4, indicating high severity. Users should review project trust settings and ensure proper configuration to mitigate this risk.

Defensive priority

PhpStorm users should prioritize updating to version 2026.2.1 or later to address the arbitrary code execution vulnerability.

Recommended defensive actions

  • Update PhpStorm to version 2026.2.1 or later
  • Review project trust settings to ensure proper configuration
  • Monitor for suspicious activity in PhpStorm projects

Evidence notes

The CVE record indicates that in JetBrains PhpStorm before 2026.2, arbitrary code execution was possible before granting project trust via project tooling. The CVSS score is 8.4, indicating a high severity vulnerability. However, details about the specific conditions or vectors that lead to this vulnerability are limited. Users are advised to verify their project configurations and update to version 2026.2.1 or later. Additional information can be found in the official CVE record and NVD details.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-64808 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-64808

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

  • CVE-2026-64808 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-64808

    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.