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{
"id": "CVE-2024-29041",
"sourceIdentifier": "security-advisories@github.com",
"published": "2024-03-25T21:15:46.847",
"lastModified": "2024-03-25T21:15:46.847",
"vulnStatus": "Received",
"descriptions": [
{
"lang": "en",
"value": "Express.js minimalist web framework for node. Versions of Express.js prior to 4.19.0 and all pre-release alpha and beta versions of 5.0 are affected by an open redirect vulnerability using malformed URLs. When a user of Express performs a redirect using a user-provided URL Express performs an encode [using `encodeurl`](https://github.com/pillarjs/encodeurl) on the contents before passing it to the `location` header. This can cause malformed URLs to be evaluated in unexpected ways by common redirect allow list implementations in Express applications, leading to an Open Redirect via bypass of a properly implemented allow list. The main method impacted is `res.location()` but this is also called from within `res.redirect()`. The vulnerability is fixed in 4.19.2 and 5.0.0-beta.3."
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "security-advisories@github.com",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "CHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM"
},
"exploitabilityScore": 2.8,
"impactScore": 2.7
}
]
},
"weaknesses": [
{
"source": "security-advisories@github.com",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-1286"
},
{
"lang": "en",
"value": "CWE-601"
}
]
}
],
"references": [
{
"url": "https://expressjs.com/en/4x/api.html#res.location",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/expressjs/express/commit/0867302ddbde0e9463d0564fea5861feb708c2dd",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/expressjs/express/commit/0b746953c4bd8e377123527db11f9cd866e39f94",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/expressjs/express/pull/5539",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/expressjs/express/security/advisories/GHSA-rv95-896h-c2vc",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/koajs/koa/issues/1800",
"source": "security-advisories@github.com"
}
]
}