{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-111757", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-16T17:52:09.081Z", "datePublished": "2026-10-19T17:31:20.341Z", "dateUpdated": "2026-10-19T17:31:20.341Z"}, "containers": {"cna": {"title": "Hono: `serveStatic` decodes the request path a second time, leading to bypass of middleware on static paths", "problemTypes": [{"descriptions": [{"cweId": "CWE-174", "lang": "en", "description": "CWE-174: Double Decoding of the Same Data", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/honojs/hono/security/advisories/GHSA-5r4p-p66f-jhc7", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/honojs/hono/security/advisories/GHSA-5r4p-p66f-jhc7"}, {"name": "https://github.com/honojs/hono/security/advisories/GHSA-5r4p-p66f-jhc7", "tags": ["x_refsource_MISC"], "url": "https://github.com/honojs/hono/security/advisories/GHSA-5r4p-p66f-jhc7"}, {"name": "https://github.com/honojs/hono/commit/8b05c774ef1555c70f5ba5e2991b7e77cc3635cc", "tags": ["x_refsource_MISC"], "url": "https://github.com/honojs/hono/commit/8b05c774ef1555c70f5ba5e2991b7e77cc3635cc"}], "affected": [{"vendor": "honojs", "product": "hono", "versions": [{"version": ">= 4.12.4, < 4.13.11", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-19T17:31:20.341Z"}, "descriptions": [{"lang": "en", "value": "Hono is a Web application framework that provides support for any JavaScript runtime. From 4.12.4 until 4.13.11, serveStatic can interpret a malformed percent-encoded path differently from upstream routing middleware and bypass protection for a static prefix. The root cause is serveStatic decodes a routed request path a second time before filesystem lookup. The attack mechanism is malformed percent encoding survives the first routing interpretation and becomes a protected path only during the later static-file decode. The affected component is serveStatic. The trigger conditions are an application protects a static prefix with upstream middleware and serveStatic receives an attacker-controlled malformed percent-encoded path. The impact is unauthorized disclosure of a static file that upstream middleware was intended to protect. The issue does not permit traversal outside the configured static root. This issue is fixed in version 4.13.11."}], "source": {"advisory": "GHSA-5r4p-p66f-jhc7", "discovery": "UNKNOWN"}}}}

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