Vulnerability-Lookup

GHSA-W332-Q679-J88P

Vulnerability from github – Published: 2026-01-27 19:09 – Updated: 2026-01-27 19:09

Summary

Hono has an Arbitrary Key Read in Serve static Middleware (Cloudflare Workers Adapter)

Details

Summary

Serve static Middleware for the Cloudflare Workers adapter contains an information disclosure vulnerability that may allow attackers to read arbitrary keys from the Workers environment. Improper validation of user-controlled paths can result in unintended access to internal asset keys.

Details

The vulnerability exists in the serve-static middleware used with the Cloudflare Workers adapter. When serving static assets, the middleware does not sufficiently validate or restrict user-supplied paths before resolving them against the Workers asset storage.

As a result, an attacker may craft requests that access arbitrary keys beyond the intended static asset scope. This issue only affects applications running on Cloudflare Workers that use Serve static Middleware with user-controllable request paths.

Impact

This vulnerability may lead to information disclosure by allowing unauthorized access to internal assets or data stored in the Workers environment. The exposed data is limited to readable asset keys and does not allow modification of stored data or execution of arbitrary code.

The impact is limited to applications that use Serve static Middleware in the Cloudflare Workers adapter and rely on it to safely handle untrusted request paths.

Affected Components

Serve static Middleware (Cloudflare Workers adapter)

Severity ?

6.3 (Medium)


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

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "hono"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.11.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-24473"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-284",
      "CWE-668"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-27T19:09:01Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nServe static Middleware for the Cloudflare Workers adapter contains an information disclosure vulnerability that may allow attackers to read arbitrary keys from the Workers environment. Improper validation of user-controlled paths can result in unintended access to internal asset keys.\n\n## Details\n\nThe vulnerability exists in the serve-static middleware used with the Cloudflare Workers adapter. When serving static assets, the middleware does not sufficiently validate or restrict user-supplied paths before resolving them against the Workers asset storage.\n\nAs a result, an attacker may craft requests that access arbitrary keys beyond the intended static asset scope. This issue only affects applications running on Cloudflare Workers that use Serve static Middleware with user-controllable request paths.\n\n## Impact\n\nThis vulnerability may lead to information disclosure by allowing unauthorized access to internal assets or data stored in the Workers environment. The exposed data is limited to readable asset keys and does not allow modification of stored data or execution of arbitrary code.\n\nThe impact is limited to applications that use Serve static Middleware in the Cloudflare Workers adapter and rely on it to safely handle untrusted request paths.\n\n## Affected Components\n\n* Serve static Middleware (Cloudflare Workers adapter)",
  "id": "GHSA-w332-q679-j88p",
  "modified": "2026-01-27T19:09:01Z",
  "published": "2026-01-27T19:09:01Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/honojs/hono/security/advisories/GHSA-w332-q679-j88p"
    },
    {
      "type": "WEB",
      "url": "https://github.com/honojs/hono/commit/cf9a78db4d0a19b117aee399cbe9d3a6d9bfd817"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/honojs/hono"
    },
    {
      "type": "WEB",
      "url": "https://github.com/honojs/hono/releases/tag/v4.11.7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Hono has an Arbitrary Key Read in Serve static Middleware (Cloudflare Workers Adapter)"
}

CVE-2026-24473 (GCVE-0-2026-24473)

Vulnerability from cvelistv5 – Published: 2026-01-27 19:37 – Updated: 2026-01-27 20:51

Title

Hono has an Arbitrary Key Read in Serve static Middleware (Cloudflare Workers Adapter)

Summary

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.11.7, Serve static Middleware for the Cloudflare Workers adapter contains an information disclosure vulnerability that may allow attackers to read arbitrary keys from the Workers environment. Improper validation of user-controlled paths can result in unintended access to internal asset keys. Version 4.11.7 contains a patch for the issue.

Severity ?

6.3 (Medium)


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

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-284 - Improper Access Control
CWE-668 - Exposure of Resource to Wrong Sphere

Assigner

GitHub_M

References

URL

Tags

	https://github.com/honojs/hono/security/advisorie…	x_refsource_CONFIRM
	https://github.com/honojs/hono/commit/cf9a78db4d0…	x_refsource_MISC
	https://github.com/honojs/hono/releases/tag/v4.11.7	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	honojs	hono	Affected: < 4.11.7

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-24473",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-27T20:36:20.299706Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-27T20:51:59.157Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "hono",
          "vendor": "honojs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4.11.7"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.11.7, Serve static Middleware for the Cloudflare Workers adapter contains an information disclosure vulnerability that may allow attackers to read arbitrary keys from the Workers environment. Improper validation of user-controlled paths can result in unintended access to internal asset keys. Version 4.11.7 contains a patch for the issue."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284: Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-668",
              "description": "CWE-668: Exposure of Resource to Wrong Sphere",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-27T19:37:52.012Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/honojs/hono/security/advisories/GHSA-w332-q679-j88p",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/honojs/hono/security/advisories/GHSA-w332-q679-j88p"
        },
        {
          "name": "https://github.com/honojs/hono/commit/cf9a78db4d0a19b117aee399cbe9d3a6d9bfd817",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/honojs/hono/commit/cf9a78db4d0a19b117aee399cbe9d3a6d9bfd817"
        },
        {
          "name": "https://github.com/honojs/hono/releases/tag/v4.11.7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/honojs/hono/releases/tag/v4.11.7"
        }
      ],
      "source": {
        "advisory": "GHSA-w332-q679-j88p",
        "discovery": "UNKNOWN"
      },
      "title": "Hono has an Arbitrary Key Read in Serve static Middleware (Cloudflare Workers Adapter)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-24473",
    "datePublished": "2026-01-27T19:37:52.012Z",
    "dateReserved": "2026-01-23T00:38:20.547Z",
    "dateUpdated": "2026-01-27T20:51:59.157Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-W332-Q679-J88P

Summary

Details

Impact

Affected Components

CVE-2026-24473 (GCVE-0-2026-24473)

Tags

Sightings

Nomenclature