Vulnerability-Lookup

GHSA-8G5G-MXQH-GRGJ

Vulnerability from github – Published: 2026-10-29 16:39 – Updated: 2026-10-29 16:39

Summary

Vite: `server.fs.deny` bypassed with queries

Details

Summary

The contents of files that are specified by server.fs.deny can be returned to the browser. This is the same as https://github.com/vitejs/vite/security/advisories/GHSA-v2wj-q39q-566r.

Impact

Only apps that match the following conditions are affected:

explicitly exposes the Vite dev server to the network (using --host or server.host config option)
the sensitive file exists in the allowed directories specified by server.fs.allow
the sensitive file is denied with a pattern that matches a file by server.fs.deny

Details

On the Vite dev server, files that should be blocked by server.fs.deny (e.g., .env, *.crt) can be retrieved with HTTP 200 responses when query parameters such as ?raw, ?import&raw, or ?import&url&inline are appended.

For the fix for https://github.com/vitejs/vite/security/advisories/GHSA-rq7h-c2jc-7f22, v6.4.4 back-ported https://github.com/vitejs/vite/pull/20410. But while that PR requires https://github.com/vitejs/vite/pull/22160 for https://github.com/vitejs/vite/security/advisories/GHSA-v2wj-q39q-566r, https://github.com/vitejs/vite/pull/22160 wasn't back-ported together causing v6 vulnerable to https://github.com/vitejs/vite/security/advisories/GHSA-v2wj-q39q-566r.

Severity

6.9 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "vite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.4.4"
            },
            {
              "fixed": "6.4.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.4.4"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-118662"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-180",
      "CWE-284"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-29T16:39:56Z",
    "nvd_published_at": "2026-10-28T21:16:56Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nThe contents of files that are specified by [`server.fs.deny`](https://vite.dev/config/server-options#server-fs-deny) can be returned to the browser. This is the same as https://github.com/vitejs/vite/security/advisories/GHSA-v2wj-q39q-566r.\n\n### Impact\n\nOnly apps that match the following conditions are affected:\n\n- explicitly exposes the Vite dev server to the network (using `--host` or [`server.host` config option](https://vitejs.dev/config/server-options.html#server-host))\n- the sensitive file exists in the allowed directories specified by [`server.fs.allow`](https://vite.dev/config/server-options#server-fs-allow)\n- the sensitive file is denied with a pattern that matches a file by [`server.fs.deny`](https://vite.dev/config/server-options#server-fs-deny)\n\n### Details\n\nOn the Vite dev server, files that should be blocked by `server.fs.deny` (e.g., `.env`, `*.crt`) can be retrieved with HTTP 200 responses when query parameters such as `?raw`, `?import\u0026raw`, or `?import\u0026url\u0026inline` are appended.\n\nFor the fix for https://github.com/vitejs/vite/security/advisories/GHSA-rq7h-c2jc-7f22, v6.4.4 back-ported https://github.com/vitejs/vite/pull/20410. But while that PR requires https://github.com/vitejs/vite/pull/22160 for https://github.com/vitejs/vite/security/advisories/GHSA-v2wj-q39q-566r, https://github.com/vitejs/vite/pull/22160 wasn\u0027t back-ported together causing v6 vulnerable to https://github.com/vitejs/vite/security/advisories/GHSA-v2wj-q39q-566r.",
  "id": "GHSA-8g5g-mxqh-grgj",
  "modified": "2026-10-29T16:39:56Z",
  "published": "2026-10-29T16:39:56Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/security/advisories/GHSA-8g5g-mxqh-grgj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118662"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/pull/22160"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/pull/23855"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/commit/91e40d7bf9777057bbd31c3eb036a54c9465697e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vitejs/vite"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/releases/tag/v6.4.5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Vite: `server.fs.deny` bypassed with queries"
}

CVE-2026-118662 (GCVE-0-2026-118662)

Vulnerability from cvelistv5 – Published: 2026-10-28 20:33 – Updated: 2026-10-28 20:33

Title

Vite: `server.fs.deny` bypassed with queries

Summary

Vite is a frontend tooling framework for JavaScript. From 6.4.4 until 6.4.5, the Vite development server can evaluate server.fs.deny before stripping loader query parameters such as ?raw, ?import&raw, or ?import&url&inline. When the development server is exposed to the network and a sensitive file is inside server.fs.allow but matched by server.fs.deny, an unauthenticated attacker can append one of these queries and retrieve the denied file. This issue is fixed in version 6.4.5.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N

CWE

CWE-180 - Incorrect Behavior Order: Validate Before Canonicalize
CWE-284 - Improper Access Control

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7994 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/vitejs/vite/security/advisorie…	x_refsource_CONFIRM
https://github.com/vitejs/vite/pull/22160	x_refsource_MISC
https://github.com/vitejs/vite/pull/23855	x_refsource_MISC
https://github.com/vitejs/vite/commit/91e40d7bf97…	x_refsource_MISC
https://github.com/vitejs/vite/releases/tag/v6.4.5	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
vitejs	vite	Affected: >= 6.4.4, < 6.4.5

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "vite",
          "vendor": "vitejs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 6.4.4, \u003c 6.4.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Vite is a frontend tooling framework for JavaScript. From 6.4.4 until 6.4.5, the Vite development server can evaluate server.fs.deny before stripping loader query parameters such as ?raw, ?import\u0026raw, or ?import\u0026url\u0026inline. When the development server is exposed to the network and a sensitive file is inside server.fs.allow but matched by server.fs.deny, an unauthenticated attacker can append one of these queries and retrieve the denied file. This issue is fixed in version 6.4.5."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-180",
              "description": "CWE-180: Incorrect Behavior Order: Validate Before Canonicalize",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284: Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T20:33:36.440Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/vitejs/vite/security/advisories/GHSA-8g5g-mxqh-grgj",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/vitejs/vite/security/advisories/GHSA-8g5g-mxqh-grgj"
        },
        {
          "name": "https://github.com/vitejs/vite/pull/22160",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vitejs/vite/pull/22160"
        },
        {
          "name": "https://github.com/vitejs/vite/pull/23855",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vitejs/vite/pull/23855"
        },
        {
          "name": "https://github.com/vitejs/vite/commit/91e40d7bf9777057bbd31c3eb036a54c9465697e",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vitejs/vite/commit/91e40d7bf9777057bbd31c3eb036a54c9465697e"
        },
        {
          "name": "https://github.com/vitejs/vite/releases/tag/v6.4.5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vitejs/vite/releases/tag/v6.4.5"
        }
      ],
      "source": {
        "advisory": "GHSA-8g5g-mxqh-grgj",
        "discovery": "UNKNOWN"
      },
      "title": "Vite: `server.fs.deny` bypassed with queries"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-118662",
    "datePublished": "2026-10-28T20:33:36.440Z",
    "dateReserved": "2026-10-28T17:25:37.561Z",
    "dateUpdated": "2026-10-28T20:33:36.440Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Vulnerability timeline

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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.
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GHSA-8G5G-MXQH-GRGJ

Summary

Impact

Details

CVE-2026-118662 (GCVE-0-2026-118662)

Tags

Sightings

Nomenclature

Vulnerability timeline

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