CVE-2026-39363 (GCVE-0-2026-39363)

Vulnerability from cvelistv5 – Published: 2026-04-07 19:10 – Updated: 2026-08-25 12:05
VLAI
Title
Vite Affected by Arbitrary File Read via Vite Dev Server WebSocket
Summary
Vite is a frontend tooling framework for JavaScript. From 6.0.0 to before 6.4.2, 7.3.2, and 8.0.5, if it is possible to connect to the Vite dev server’s WebSocket without an Origin header, an attacker can invoke fetchModule via the custom WebSocket event vite:invoke and combine file://... with ?raw (or ?inline) to retrieve the contents of arbitrary files on the server as a JavaScript string (e.g., export default "..."). The access control enforced in the HTTP request path (such as server.fs.allow) is not applied to this WebSocket-based execution path. This vulnerability is fixed in 6.4.2, 7.3.2, and 8.0.5.
Severity
8.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-08 17:52 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-306 - Missing Authentication for Critical Function
  • CWE-1220 - Insufficient Granularity of Access Control
Assigner
References
Impacted products
Vendor Product Version CPE status
vitejs vite Affected: >= 8.0.0, < 8.0.5
Affected: >= 7.0.0, < 7.3.2
Affected: >= 6.0.0, < 6.4.2
guessed Create a notification for this product.
vitejs vite-plus Affected: < 0.1.16
guessed Create a notification for this product.
Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8 Unaffected: 0:2.5.20260422-3.el8ap , < * (rpm)
    cpe:/a:redhat:ansible_automation_platform:2.5::el8
Create a notification for this product.
Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9 Unaffected: 0:2.5.20260422-3.el9ap , < * (rpm)
    cpe:/a:redhat:ansible_automation_platform:2.5::el9
Create a notification for this product.
Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9 Unaffected: 0:2.6.9-1.el9ap , < * (rpm)
    cpe:/a:redhat:ansible_automation_platform:2.6::el9
Create a notification for this product.
Red Hat Red Hat Ansible Automation Platform 2.6 Unaffected: 1779783248 , < * (rpm)
    cpe:/a:redhat:ansible_automation_platform:2.6::el9
Create a notification for this product.
Red Hat Red Hat Ansible Automation Platform 2.7 Unaffected: 1787218409 , < * (rpm)
    cpe:/a:redhat:ansible_automation_platform:2.7::el9
Create a notification for this product.
Red Hat Red Hat Advanced Cluster Security 4     cpe:/a:redhat:advanced_cluster_security:4
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Red Hat Red Hat Ansible Automation Platform 2     cpe:/a:redhat:ansible_automation_platform:2
Create a notification for this product.
Red Hat Red Hat Build of Keycloak     cpe:/a:redhat:build_keycloak:
Create a notification for this product.
Red Hat Red Hat Build of Podman Desktop     cpe:/a:redhat:podman_desktop:1
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Red Hat Red Hat Build of Podman Desktop - Tech Preview     cpe:/a:redhat:podman_desktop:0
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Red Hat Red Hat JBoss Enterprise Application Platform 8     cpe:/a:redhat:jboss_enterprise_application_platform:8
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Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack     cpe:/a:redhat:jbosseapxp
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Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.