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TI-2026-28350 Aliases CVE-2026-39363GHSA-p9ff-h696-f583

Vite Affected by Arbitrary File Read via Vite Dev Server WebSocket

Priority HIGH 75CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Information disclosure, Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 5 fixed, 4 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-200 and CWE-306.

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.03396 88th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial vite (vitejs): 8.0.5, 7.3.2, 6.4.2vite-plus (vitejs): 0.1.16+1 more productRed Hat: 4 advisoriesRed Hat: 5 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
vitejsvite8.0.0 to before 8.0.5; 7.0.0 to before 7.3.2; 6.0.0 to before 6.4.28.0.5, 7.3.2, 6.4.2Patch availableCNA
vitejsvite-plusbefore 0.1.160.1.16Patch availableCNA
—vite (npm)8.0.0 to before 8.0.58.0.5Patch availableGHSA-p9ff-h696-f583
—vite (npm)7.0.0 to before 7.3.27.3.2Patch availableGHSA-p9ff-h696-f583
—vite (npm)6.0.0 to before 6.4.26.4.2Patch availableGHSA-p9ff-h696-f583
  • vite Vendorvitejs Affected 8.0.0 to before 8.0.5; 7.0.0 to before 7.3.2; 6.0.0 to before 6.4.2 Fixed in 8.0.5, 7.3.2, 6.4.2 Patch available CNA
  • vite-plus Vendorvitejs Affected before 0.1.16 Fixed in 0.1.16 Patch available CNA
  • vite (npm) Vendor— Affected 8.0.0 to before 8.0.5 Fixed in 8.0.5 Patch available GHSA-p9ff-h696-f583
  • vite (npm) Vendor— Affected 7.0.0 to before 7.3.2 Fixed in 7.3.2 Patch available GHSA-p9ff-h696-f583
  • vite (npm) Vendor— Affected 6.0.0 to before 6.4.2 Fixed in 6.4.2 Patch available GHSA-p9ff-h696-f583

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:vitejs:vite:*:*:*:*:*:node.js:*:*6.0.0 – 6.4.1; 7.0.0 – 7.3.1; 8.0.0 – 8.0.4Vulnerablevitejs
cpe:2.3:a:voidzero:vite\+:*:*:*:*:*:node.js:*:*up to 0.1.15VulnerableVoidzero
  • cpe:2.3:a:vitejs:vite:*:*:*:*:*:node.js:*:* Versions 6.0.0 – 6.4.1; 7.0.0 – 7.3.1; 8.0.0 – 8.0.4 Vulnerable ·vitejs
  • cpe:2.3:a:voidzero:vite\+:*:*:*:*:*:node.js:*:* Versions up to 0.1.15 Vulnerable ·Voidzero

Remediation

  • Fix · CNA vite (vitejs) Fixed in 8.0.5, 7.3.2, 6.4.2
  • Fix · CNA vite-plus (vitejs) Fixed in 0.1.16
  • Fix · GHSA-p9ff-h696-f583 vite (npm) Fixed in 8.0.5 Advisory →
  • Fix · GHSA-p9ff-h696-f583 vite (npm) Fixed in 7.3.2 Advisory →
  • Fix · GHSA-p9ff-h696-f583 vite (npm) Fixed in 6.4.2 Advisory →

Red Hat 4 advisories

  • RHSA-2026:59153 Released 2026-08-24 · Red Hat rating Important
    Red Hat Ansible Automation Platform 2.7 Container Release Update
    • Red Hat Ansible Automation Platform 2.7 registry.redhat.io/ansible-automation-platform-27/controller-rhel9, registry.redhat.io/ansible-automation-platform-27/eda-controller-rhel9, registry.redhat.io/ansible-automation-platform-27/ee-minimal-rhel9 +3
  • RHSA-2026:24866 Released 2026-06-09 · Red Hat rating Critical
    Red Hat Ansible Automation Platform 2.6 Container Release Update
    • Red Hat Ansible Automation Platform 2.6 registry.redhat.io/ansible-automation-platform-26/controller-rhel9, registry.redhat.io/ansible-automation-platform-26/eda-controller-rhel9, registry.redhat.io/ansible-automation-platform-26/ee-supported-rhel9 +7
  • RHSA-2026:24761 Released 2026-06-09 · Red Hat rating Important
    Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update
    • Red Hat Ansible Automation Platform 2.5 for RHEL 8 automation-controller-venv-tower-4.6.29-2.el8ap, automation-gateway-proxy-server-2.5.10-6.el8ap, automation-gateway-server-2.5.20260422-3.el8ap +4
    • Red Hat Ansible Automation Platform 2.5 for RHEL 9 automation-controller-venv-tower-4.6.29-2.el9ap, automation-gateway-proxy-server-2.6.14-3.el9ap, automation-gateway-server-2.5.20260422-3.el9ap +4
Show 1 more Red Hat advisories
  • RHSA-2026:24762 Released 2026-06-09 · Red Hat rating Important
    Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update
    • Red Hat Ansible Automation Platform 2.6 for RHEL 10 python3-click-8.3.3-1.el10ap, receptor-1.6.5-1.el10ap, receptorctl-1.6.5-1.el10ap
    • Red Hat Ansible Automation Platform 2.6 for RHEL 9 automation-controller-4.7.12-1.el9ap, automation-controller-cli-4.7.12-1.el9ap, automation-controller-server-4.7.12-1.el9ap +10

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Ansible Automation Platform 2AffectedNo fix yet
Red Hat Build of KeycloakAffectedNo fix planned: Will not fix
Red Hat Build of Podman DesktopAffectedNo fix yet
Red Hat Build of Podman Desktop - Tech PreviewAffectedNo fix yet
Red Hat Ansible Automation Platform 2.5 for RHEL 8Fixed RHSA-2026:24761
Red Hat Ansible Automation Platform 2.5 for RHEL 9Fixed RHSA-2026:24761
Red Hat Ansible Automation Platform 2.6Fixed RHSA-2026:24866
Red Hat Ansible Automation Platform 2.6 for RHEL 9Fixed RHSA-2026:24762
Red Hat Ansible Automation Platform 2.7Fixed RHSA-2026:59153
Not affected: 11 products
  • Red Hat Advanced Cluster Security 4
  • Red Hat Ansible Automation Platform 2
  • Red Hat Ansible Automation Platform 2.5 for RHEL 8
  • Red Hat Ansible Automation Platform 2.5 for RHEL 9
  • Red Hat Ansible Automation Platform 2.6
  • Red Hat Ansible Automation Platform 2.6 for RHEL 10
  • Red Hat Ansible Automation Platform 2.6 for RHEL 9
  • Red Hat Ansible Automation Platform 2.7
  • Red Hat JBoss Enterprise Application Platform 8
  • Red Hat JBoss Enterprise Application Platform Expansion Pack
  • Red Hat OpenShift Container Platform 4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-39363
  2. 2026-10-03 Alias added: GHSA-p9ff-h696-f583
  3. 2026-10-10 Affected versions changed · Red Hat

References

  • TI-2025-22386 Vite has a `server.fs.deny` bypassed for `inline` and `raw` with `?import` query KEVCVSS 3.1HIGH 7.5
  • TI-2025-21544 Vite bypasses server.fs.deny when using `?raw??` CVSS 3.1HIGH 7.5
  • TI-2023-16938 Vite Server Options (server.fs.deny) can be bypassed using double forward-slash (//) CVSS 3.1HIGH 7.5
  • TI-2026-38634 Vite: `server.fs.deny` bypass on Windows alternate paths CVSS 4.0HIGH 8.2
  • TI-2026-28352 Vite has a Path Traversal in Optimized Deps `.map` Handling CVSS 4.0MEDIUM 6.3
  • TI-2026-28351 Vite has a `server.fs.deny` bypass with queries CVSS 4.0HIGH 8.2
See all 13 →

Sources