Angular Service Worker Policy-Bypass & Credential-Stripping Vulnerabilities_CVE-2026-50169

{
    "lastseen": "",
    "description": "Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.15 20.3.22, and 19.2.23, an issue in the @angular/service-worker package compromises the integrity of request-policy enforcement during request reconstruction. When the Angular Service Worker intercepts network requests for matched assets, it reconstructs a new Request object using an internal helper function. During this reconstruction process, the helper function strips the strict, client-defined request redirect policy configuration (such as redirect: 'error'), falling back to the browser's default 'follow' strategy. If the target web application makes client-side requests with a strict policy (e.g., expecting a network error instead of automatically following redirects), the service worker will bypass this instruction and automatically follow HTTP 3xx redirects to other destinations. This acts as an unintended proxy/intermediary (\"Confused Deputy\") and can result in cookie/credential exposure or same-origin session-restricted data leakage if public dynamic routes redirect to sensitive routes. This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.",
    "published": "2026-06-22T15:41:17.125Z",
    "modified": "2026-06-22T15:46:26.364Z",
    "type": "cve",
    "title": "Angular Service Worker Policy-Bypass & Credential-Stripping Vulnerabilities",
    "source": "GitHub_M",
    "references": "https://github.com/angular/angular/security/advisories/GHSA-gv2q-mqqv-365m\nhttps://github.com/angular/angular/pull/67494",
    "id": "CVE-2026-50169",
    "bulletinFamily": "",
    "cwe": [
        "CWE-200",
        "CWE-441",
        "CWE-524"
    ],
    "cvelist": null,
    "sourceData": "angular angular >= 22.0.0-next.0, < 22.0.0-rc.2\nangular angular >= 21.0.0-next.0, < 21.2.15\nangular angular >= 20.0.0-next.0, < 20.3.22\nangular angular >= 19.0.0-next.0, < 19.2.23\nangular angular <= 18.2.14",
    "sourceHref": "",
    "cvss": {
        "score": 5.7,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
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        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "angular",
    "version": ">= 22.0.0-next.0, < 22.0.0-rc.2",
    "vendor": "angular",
    "ai_description": "",
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    "ai_score": 0
}