Files
vuln-cve/data/2026/112xxx/CVE-2026-112362.json
T

148 lines
7.2 KiB
JSON

{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-112362",
"assignerOrgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
"state": "PUBLISHED",
"assignerShortName": "openjs",
"dateReserved": "2026-10-19T14:59:03.468Z",
"datePublished": "2026-10-27T11:27:59.364Z",
"dateUpdated": "2026-11-04T17:11:17.647Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
"shortName": "openjs",
"dateUpdated": "2026-10-27T11:27:59.364Z"
},
"descriptions": [
{
"lang": "en",
"value": "@fastify/express is a Fastify plugin that runs Express middleware inside Fastify. In versions 4.0.5 through 4.0.8, when Fastify runs with the non-default ignoreDuplicateSlashes option enabled, the plugin matches path-scoped Express middleware against a URL whose duplicate-slash normalization has also collapsed the separator after an absolute-form request target's scheme, so Fastify's router resolves the request to the scoped path and runs the handler while the Express layer no longer sees that path. As a result, a request using an absolute-form target can reach a handler on a scoped route such as an admin path while the middleware for authentication, authorization, or rate limiting is skipped. An unauthenticated attacker needs only the non-default ignoreDuplicateSlashes option to be enabled. The issue is fixed in @fastify/express 4.0.9, and users should upgrade to 4.0.9 or later. As a workaround, enforce authentication in a Fastify hook such as preHandler that runs after the router resolves the request, or leave ignoreDuplicateSlashes at its default.",
"supportingMedia": [
{
"type": "text/html",
"base64": false,
"value": "@fastify/express is a Fastify plugin that runs Express middleware inside Fastify. In versions 4.0.5 through 4.0.8, when Fastify runs with the non-default ignoreDuplicateSlashes option enabled, the plugin matches path-scoped Express middleware against a URL whose duplicate-slash normalization has also collapsed the separator after an absolute-form request target's scheme, so Fastify's router resolves the request to the scoped path and runs the handler while the Express layer no longer sees that path. As a result, a request using an absolute-form target can reach a handler on a scoped route such as an admin path while the middleware for authentication, authorization, or rate limiting is skipped. An unauthenticated attacker needs only the non-default ignoreDuplicateSlashes option to be enabled. The issue is fixed in @fastify/express 4.0.9, and users should upgrade to 4.0.9 or later. As a workaround, enforce authentication in a Fastify hook such as preHandler that runs after the router resolves the request, or leave ignoreDuplicateSlashes at its default."
}
]
}
],
"affected": [
{
"vendor": "@fastify/express",
"product": "@fastify/express",
"defaultStatus": "unaffected",
"versions": [
{
"versionType": "semver",
"status": "affected",
"version": "4.0.5",
"lessThan": "4.0.9"
},
{
"versionType": "semver",
"status": "unaffected",
"version": "4.0.9"
}
],
"packageURL": "pkg:npm/@fastify/express"
}
],
"references": [
{
"url": "https://github.com/fastify/fastify-express/security/advisories/GHSA-6h42-57hq-9746"
},
{
"url": "https://cna.openjsf.org/security-advisories.html"
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "agent-killjoy"
},
{
"lang": "en",
"type": "remediation developer",
"value": "mcollina"
},
{
"lang": "en",
"type": "remediation reviewer",
"value": "UlisesGascon"
}
],
"title": "@fastify/express vulnerable to path-scoped middleware bypass via absolute-form request targets",
"metrics": [
{
"format": "CVSS",
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"baseScore": 9.1,
"baseSeverity": "CRITICAL"
},
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-436",
"lang": "en",
"description": "CWE-436: Interpretation Conflict",
"type": "CWE"
}
]
}
],
"x_generator": {
"engine": "cve-kit 1.0.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-11-04T17:11:01.273089Z",
"id": "CVE-2026-112362",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-04T17:11:17.647Z"
}
}
]
}
}