79 行
3.1 KiB
JSON
79 行
3.1 KiB
JSON
{
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"canonical_id": "undici--CVE-2026-1527",
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"system_id": "undici",
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"display_name": "Undici",
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"category": "frameworks",
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"advisory_mode": "core",
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"title": "Undici has CRLF Injection in undici via `upgrade` option",
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"summary": "### Impact\n\nWhen an application passes user-controlled input to the `upgrade` option of `client.request()`, an attacker can inject CRLF sequences (`\\r\\n`) to:\n\n1. Inject arbitrary HTTP headers\n2. Terminate the HTTP request prematurely and smuggle raw data to non-HTTP services (Redis, Memcached, Elasticsearch)\n\nThe vulnerability exists because undici writes the `upgrade` value directly to the socket without validating for invalid header characters:\n\n```javascript\n// lib/dispatcher/client-h1.js:1121\nif (upgrade) {\n header += `connection: upgrade\\r\\nupgrade: ${upgrade}\\r\\n`\n}\n```\n\n### Patches\n\n Patched in the undici version v7.24.0 and v6.24.0. Users should upgrade to this version or later.\n\n### Workarounds\n\nSanitize the `upgrade` option string before passing to undici:\n\n```javascript\nfunction sanitizeUpgrade(value) {\n if (/[\\r\\n]/.test(value)) {\n throw new Error('Invalid upgrade value')\n }\n return value\n}\n\nclient.request({\n upgrade: sanitizeUpgrade(userInput)\n})\n```",
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"published_at": "2026-03-13T20:41:26Z",
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"updated_at": "2026-03-13T20:54:25.572106Z",
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"severity": "medium",
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"cvss_score": 3.1,
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"exploit_status": "unknown",
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"source_confidence": "official",
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"official_source_url": "https://github.com/nodejs/undici/security/advisories/GHSA-4992-7rv2-5pvq",
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"secondary_source_urls": [
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"https://cna.openjsf.org/security-advisories.html",
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"https://nvd.nist.gov/vuln/detail/CVE-2026-1527",
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"https://hackerone.com/reports/3487198",
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"https://github.com/nodejs/undici"
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],
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"aliases": [
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"CVE-2026-1527",
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"GHSA-4992-7rv2-5pvq"
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],
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"cve_ids": [
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"CVE-2026-1527"
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],
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"ghsa_ids": [
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"GHSA-4992-7rv2-5pvq"
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],
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"osv_ids": [
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"GHSA-4992-7rv2-5pvq"
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],
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"affected_versions": [
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"introduced=0, fixed<6.24.0",
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"introduced=7.0.0, fixed<7.24.0"
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],
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"fixed_versions": [
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"6.24.0",
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"7.24.0"
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],
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"package_name": "undici",
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"render_markdown": true,
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"case_path": "07-framework-security/frameworks/undici/cases/undici-cve-2026-1527.md",
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"secure_code_topics": [
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"ssrf-url-validation",
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"proxy-trust-boundary"
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],
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"status": "generated",
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"triage_reasons": [],
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"verification_status": "verified-real",
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"verification_mode": "real",
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"last_verified_at": "2026-03-18T04:03:18+00:00",
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"last_run_id": "undici-undici--CVE-2026-1527-20260318040314",
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"evidence_bundle": "/Users/x/websafe/06-case-studies/generated-runs/undici-undici--CVE-2026-1527-20260318040314",
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"historical_status": "verified-real",
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"latest_status": "verified-real",
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"browser_evidence": {
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"required": false,
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"present": false,
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"refs": []
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},
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"repro_profile_id": "undici-ssrf",
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"artifact_mode": "local-fixture",
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"blocked_reason": null,
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"metadata": {
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"source_names": [
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"OSV Undici",
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"NVD Undici"
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],
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"source_kinds": [
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"osv-batch",
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"nvd-search"
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],
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"candidate_count": 2
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}
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}
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