Vulnerability-Lookup

FKIE_CVE-2026-39363

Vulnerability from fkie_nvd - Published: 2026-04-07 20:16 - Updated: 2026-08-04 13:18

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

References

URL	Tags
security-advisories@github.com	https://github.com/vitejs/vite/security/advisories/GHSA-p9ff-h696-f583	Exploit, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:24761
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:24762
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:24866
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/security/cve/CVE-2026-39363
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://bugzilla.redhat.com/show_bug.cgi?id=2456179
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/vitejs/vite/security/advisories/GHSA-p9ff-h696-f583	Exploit, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39363.json

Impacted products

Vendor	Product	Version
vitejs	vite	*
vitejs	vite	*
vitejs	vite	*
voidzero	vite\+	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "vite",
          "vendor": "vitejs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 8.0.0, \u003c 8.0.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.0.0, \u003c 7.3.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 6.0.0, \u003c 6.4.2"
            }
          ]
        },
        {
          "product": "vite-plus",
          "vendor": "vitejs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.1.16"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    },
    {
      "affectedData": [
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          "cpes": [
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          ],
          "defaultStatus": "affected",
          "packageName": "automation-gateway",
          "product": "Red Hat Ansible Automation Platform 2.5 for RHEL 8",
          "vendor": "Red Hat",
          "versions": [
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              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.5.20260422-3.el8ap",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2.5::el9"
          ],
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          "packageName": "automation-gateway",
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          "vendor": "Red Hat",
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          "product": "Red Hat Ansible Automation Platform 2.6",
          "vendor": "Red Hat",
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              "version": "1779783248",
              "versionType": "rpm"
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          "cpes": [
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          "defaultStatus": "unaffected",
          "packageName": "rhacs-eng/release-main",
          "product": "Red Hat Advanced Cluster Security 4",
          "vendor": "Red Hat"
        },
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          "cpes": [
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          "defaultStatus": "affected",
          "packageName": "ansible-automation-platform-26/gateway-rhel9",
          "product": "Red Hat Ansible Automation Platform 2",
          "vendor": "Red Hat"
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          "packageName": "automation-controller",
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          "packageName": "automation-eda-controller",
          "product": "Red Hat Ansible Automation Platform 2",
          "vendor": "Red Hat"
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        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
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          "defaultStatus": "affected",
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          "product": "Red Hat Build of Keycloak",
          "vendor": "Red Hat"
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          "product": "Red Hat Build of Podman Desktop",
          "vendor": "Red Hat"
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          "defaultStatus": "affected",
          "packageName": "redhat-user-workloads/bootc-ext",
          "product": "Red Hat Build of Podman Desktop - Tech Preview",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
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          "defaultStatus": "affected",
          "packageName": "redhat-user-workloads/openshift-local-ext",
          "product": "Red Hat Build of Podman Desktop - Tech Preview",
          "vendor": "Red Hat"
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          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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          "defaultStatus": "affected",
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          "vendor": "Red Hat"
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          "vendor": "Red Hat"
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          "vendor": "Red Hat"
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          ],
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          "packageName": "redhat-user-workloads/art-images",
          "product": "Red Hat OpenShift Container Platform 4",
          "vendor": "Red Hat"
        }
      ],
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    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:vitejs:vite:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "FE1AE8AE-8504-4C45-A361-8EF1F8D573AD",
              "versionEndIncluding": "6.4.1",
              "versionStartIncluding": "6.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:vitejs:vite:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "8D4169B2-49CC-4174-B1AB-2D61D3441617",
              "versionEndIncluding": "7.3.1",
              "versionStartIncluding": "7.0.0",
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            {
              "criteria": "cpe:2.3:a:vitejs:vite:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "51F8A931-4520-4696-89C4-7F94228654F5",
              "versionEndIncluding": "8.0.4",
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            },
            {
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              "matchCriteriaId": "6C271AE4-5F12-4689-A8A9-CBCBD3C447DC",
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          "negate": false,
          "operator": "OR"
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    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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\u2019s 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."
    },
    {
      "lang": "es",
      "value": "Vite es un framework de herramientas de frontend para JavaScript. Desde la versi\u00f3n 6.0.0 hasta antes de las versiones 6.4.2, 7.3.2 y 8.0.5, si es posible conectarse al WebSocket del servidor de desarrollo de Vite sin una cabecera Origin, un atacante puede invocar fetchModule a trav\u00e9s del evento WebSocket personalizado vite:invoke y combinar file://... con ?raw (o ?inline) para recuperar el contenido de archivos arbitrarios en el servidor como una cadena de JavaScript (por ejemplo, export default \u0027...\u0027). El control de acceso aplicado en la ruta de solicitud HTTP (como server.fs.allow) no se aplica a esta ruta de ejecuci\u00f3n basada en WebSocket. Esta vulnerabilidad se corrige en las versiones 6.4.2, 7.3.2 y 8.0.5."
    }
  ],
  "id": "CVE-2026-39363",
  "lastModified": "2026-08-04T13:18:24.450",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
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        "impactScore": 3.6,
        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
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        "type": "Secondary"
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    "ssvcV203": [
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            {
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            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-08T17:52:54.234521Z",
          "version": "2.0.3"
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  "published": "2026-04-07T20:16:30.000",
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      "tags": [
        "Exploit",
        "Vendor Advisory"
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      "url": "https://github.com/vitejs/vite/security/advisories/GHSA-p9ff-h696-f583"
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    },
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    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39363.json"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        },
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
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    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1220"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "type": "Secondary"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2026-04-07 19:10 – Updated: 2026-08-17 12:05

Title

Vite Affected by Arbitrary File Read via Vite Dev Server WebSocket

Summary

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

GitHub_M mitre root

References

7 references

URL	Tags
https://github.com/vitejs/vite/security/advisorie…	x_refsource_CONFIRM
https://access.redhat.com/security/cve/CVE-2026-39363	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2456179	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:24761	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:24762	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:24866	vendor-advisoryx_refsource_REDHAT

Impacted products

14 products

Vendor	Product	Version
vitejs	vite	Affected: >= 8.0.0, < 8.0.5 Affected: >= 7.0.0, < 7.3.2 Affected: >= 6.0.0, < 6.4.2
vitejs	vite-plus	Affected: < 0.1.16
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
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
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
Red Hat	Red Hat Ansible Automation Platform 2.6	Unaffected: 1779783248 , < * (rpm) cpe:/a:redhat:ansible_automation_platform:2.6::el9
Red Hat	Red Hat Advanced Cluster Security 4	cpe:/a:redhat:advanced_cluster_security:4
Red Hat	Red Hat Ansible Automation Platform 2	cpe:/a:redhat:ansible_automation_platform:2
Red Hat	Red Hat Build of Keycloak	cpe:/a:redhat:build_keycloak:
Red Hat	Red Hat Build of Podman Desktop	cpe:/a:redhat:podman_desktop:1
Red Hat	Red Hat Build of Podman Desktop - Tech Preview	cpe:/a:redhat:podman_desktop:0
Red Hat	Red Hat JBoss Enterprise Application Platform 8	cpe:/a:redhat:jboss_enterprise_application_platform:8
Red Hat	Red Hat JBoss Enterprise Application Platform Expansion Pack	cpe:/a:redhat:jbosseapxp
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Show details on NVD website

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

FKIE_CVE-2026-39363

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

Tags

Sightings

Nomenclature