185 行
11 KiB
JSON
185 行
11 KiB
JSON
{
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"canonical_id": "astro--CVE-2025-64765",
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"system_id": "astro",
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"display_name": "Astro",
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"category": "frameworks",
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"advisory_mode": "core",
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"title": "Astro's middleware authentication checks based on url.pathname can be bypassed via url encoded values",
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"summary": "A mismatch exists between how Astro normalizes request paths for routing/rendering and how the application\u2019s middleware reads the path for validation checks. Astro internally applies `decodeURI()` to determine which route to render, while the middleware uses `context.url.pathname` without applying the same normalization (decodeURI).\n\nThis discrepancy may allow attackers to reach protected routes (e.g., /admin) using encoded path variants that pass routing but bypass validation checks.\n\nhttps://github.com/withastro/astro/blob/ebc4b1cde82c76076d5d673b5b70f94be2c066f3/packages/astro/src/vite-plugin-astro-server/request.ts#L40-L44\n\n```js\n/** The main logic to route dev server requests to pages in Astro. */\nexport async function handleRequest({\n pipeline,\n routesList,\n controller,\n incomingRequest,\n incomingResponse,\n}: HandleRequest) {\n const { config, loader } = pipeline;\n const origin = `${loader.isHttps() ? 'https' : 'http'}://${\n incomingRequest.headers[':authority'] ?? incomingRequest.headers.host\n }`;\n\n const url = new URL(origin + incomingRequest.url);\n let pathname: string;\n if (config.trailingSlash === 'never' && !incomingRequest.url) {\n pathname = '';\n } else {\n // We already have a middleware that checks if there's an incoming URL that has invalid URI, so it's safe\n // to not handle the error: packages/astro/src/vite-plugin-astro-server/base.ts\n pathname = decodeURI(url.pathname); // here this url is for routing/rendering\n }\n\n // Add config.base back to url before passing it to SSR\n url.pathname = removeTrailingForwardSlash(config.base) + url.pathname; // this is used for middleware context\n```\n\nConsider an application having the following middleware code:\n\n```js\nimport { defineMiddleware } from \"astro/middleware\";\n\nexport const onRequest = defineMiddleware(async (context, next) => {\n const isAuthed = false; // simulate no auth\n if (context.url.pathname === \"/admin\" && !isAuthed) {\n return context.redirect(\"/\");\n }\n return next();\n});\n```\n\n`context.url.pathname` is validated , if it's equal to `/admin` the `isAuthed` property must be true for the next() method to be called. The same example can be found in the official docs https://docs.astro.build/en/guides/authentication/\n\n\n`context.url.pathname` returns the raw version which is `/%61admin` while pathname which is used for routing/rendering `/admin`, this creates a path normalization mismatch.\n\nBy sending the following request, it's possible to bypass the middleware check\n\n```\nGET /%61dmin HTTP/1.1\nHost: localhost:3000\n```\n\n<img width=\"1920\" height=\"1025\" alt=\"image\" src=\"https://github.com/user-attachments/assets/7e0eeecd-607a-4c73-b12e-5977a30c9bc4\" />\n\n\n**Remediation**\n\nEnsure middleware context has the same normalized pathname value that Astro uses internally, because any difference could allow it to bypass such checks. In short maybe something like this\n\n```diff\n pathname = decodeURI(url.pathname);\n }\n\n // Add config.base back to url before passing it to SSR\n- url.pathname = removeTrailingForwardSlash(config.base) + url.pathname;\n+ url.pathname = removeTrailingForwardSlash(config.base) + decodeURI(url.pathname);\n```\n\nThank you, let @Sudistark know if any more info is needed. Happy to help :)",
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"published_at": "2025-11-19T20:03:21Z",
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"updated_at": "2026-02-04T03:01:27.986221Z",
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"severity": "medium",
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"cvss_score": 4.0,
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"exploit_status": "unknown",
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"source_confidence": "official",
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"official_source_url": "https://github.com/withastro/astro/security/advisories/GHSA-ggxq-hp9w-j794",
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"secondary_source_urls": [
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"https://nvd.nist.gov/vuln/detail/CVE-2025-64765",
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"https://github.com/withastro/astro/commit/6f800813516b07bbe12c666a92937525fddb58ce",
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"https://github.com/withastro/astro"
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],
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"aliases": [
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"CVE-2025-64765",
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"GHSA-ggxq-hp9w-j794"
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],
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"cve_ids": [
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"CVE-2025-64765"
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],
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"ghsa_ids": [
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"GHSA-ggxq-hp9w-j794"
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],
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"osv_ids": [
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"GHSA-ggxq-hp9w-j794"
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],
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"affected_versions": [
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"introduced=0, fixed<5.15.8"
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],
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"fixed_versions": [
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"5.15.8"
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],
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"package_name": "astro",
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"render_markdown": true,
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"case_path": "07-framework-security/frameworks/astro/cases/astro-cve-2025-64765.md",
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"secure_code_topics": [
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"authz-server-side-recheck",
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"csp-trusted-types",
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"plugin-extension-trust-policy",
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"dependency-upgrade-policy",
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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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"entity_refs": [
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{
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"entity_id": "astro",
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"entity_type": "system",
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"relation": "root-system",
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"root_system_id": "astro",
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"official": true
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},
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{
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"entity_id": "astro--project--astro",
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"entity_type": "project",
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"relation": "affected-component",
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"root_system_id": "astro",
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"official": false
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}
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],
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"affected_components": [
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{
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"name": "astro",
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"entity_id": "astro--project--astro",
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"scope": "package",
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"package_name": "astro",
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"official": false
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}
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],
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"affected_version_ranges": [
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"introduced=0, fixed<5.15.8"
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],
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"fixed_version_ranges": [
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"5.15.8"
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],
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"introduced_version": "introduced=0, fixed<5.15.8",
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"patched_version": "5.15.8",
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"version_evidence_sources": [
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"https://github.com/withastro/astro/security/advisories/GHSA-ggxq-hp9w-j794",
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"https://nvd.nist.gov/vuln/detail/CVE-2025-64765",
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"https://github.com/withastro/astro/commit/6f800813516b07bbe12c666a92937525fddb58ce",
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"https://github.com/withastro/astro"
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],
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"affected_version_refs": [
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"astro--project--astro--introduced-0-fixed-5-15-8"
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],
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"fixed_version_refs": [
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"astro--project--astro--5-15-8"
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],
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"patched_version_refs": [
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"astro--project--astro--5-15-8"
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],
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"version_sync_confidence": "high",
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"advisory_scope": "package",
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"version_confidence": "high",
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"version_gap_reason": "",
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"version_resolution_needed": false,
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"workflow": {
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"workflow_id": "astro--CVE-2025-64765--workflow",
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"vuln_family": "file-upload",
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"entry_surface": "upload-or-import-surface",
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"preconditions": [
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"\u4ec5\u5728 lab-local\u3001lab-public \u6216\u660e\u786e\u6388\u6743\u76ee\u6807\u4e2d\u6267\u884c\u3002",
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"\u786e\u8ba4\u76ee\u6807\u547d\u4e2d\u7248\u672c\u65ad\u8a00: introduced=0, fixed<5.15.8",
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"\u82e5\u5bf9\u8c61\u5c5e\u4e8e `package`\uff0c\u5148\u786e\u8ba4\u6269\u5c55/\u4ed3\u5e93/\u5305\u5df2\u542f\u7528\u5e76\u5904\u4e8e\u53d7\u5f71\u54cd\u7248\u672c\u3002"
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],
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"required_role": "authenticated-uploader",
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"affected_version_assertion": [
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"introduced=0, fixed<5.15.8"
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],
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"trigger_vector": "\u5bf9 `file-upload` \u5bb6\u65cf\u5165\u53e3\u6295\u9012\u6700\u5c0f\u5316\u3001\u53ef\u5ba1\u8ba1\u3001\u53ef\u56de\u6eda\u7684\u53d7\u63a7\u8f93\u5165\uff0c\u6bd4\u8f83\u4fee\u590d\u524d\u540e\u5dee\u5f02\u3002",
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"request_or_ui_path": [
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"/upload",
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"/import",
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"/plugin/install"
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],
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"input_shape": "\u63d0\u4ea4\u53d7\u63a7\u975e\u6267\u884c\u6837\u672c\uff0c\u9a8c\u8bc1\u6269\u5c55\u540d\u3001MIME\u3001\u843d\u76d8\u4e0e\u6267\u884c\u6743\u9650\u3002",
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"expected_unsafe_behavior": "\u4e0a\u4f20\u6837\u672c\u88ab\u9519\u8bef\u63a5\u53d7\u3001\u53ef\u8bbf\u95ee\u6216\u4f4d\u4e8e\u53ef\u6267\u884c\u8def\u5f84\u3002",
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"server_evidence_points": [
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"\u5e94\u7528\u65e5\u5fd7\u4e2d\u7684\u547d\u4e2d\u8def\u5f84\u3001\u9274\u6743\u51b3\u7b56\u548c\u5f02\u5e38\u6808",
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"\u53cd\u5411\u4ee3\u7406\u6216\u8fb9\u754c\u5c42\u65e5\u5fd7\u4e2d\u7684\u8bf7\u6c42\u5934\u3001\u6765\u6e90 IP \u4e0e\u8def\u7531\u51b3\u7b56"
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],
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"browser_evidence_points": [
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"\u57fa\u7ebf\u622a\u56fe\u4e0e\u653b\u51fb\u540e\u622a\u56fe\u7684 DOM/\u89c6\u89c9\u5dee\u5f02",
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"console\u3001network \u4e0e response metadata \u4e2d\u7684\u5f02\u5e38\u4fe1\u53f7"
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],
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"db_or_fs_evidence_points": [
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"\u6570\u636e\u5e93\u4e2d\u65b0\u589e/\u8d8a\u6743\u8bfb\u53d6\u7684\u6d4b\u8bd5\u6570\u636e",
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"\u6587\u4ef6\u7cfb\u7edf\u4e2d\u65b0\u589e\u4e0a\u4f20\u6837\u672c\u3001\u7f13\u5b58\u6761\u76ee\u6216\u8d8a\u6743\u8bfb\u53d6\u75d5\u8ff9"
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],
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"detection_signals": [
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"WAF / reverse proxy \u5f02\u5e38\u65e5\u5fd7\u3001\u8bbf\u95ee\u65e5\u5fd7\u548c\u544a\u8b66",
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"\u5e94\u7528\u5ba1\u8ba1\u65e5\u5fd7\u4e2d\u7684\u6743\u9650\u9519\u8bef\u3001\u91cd\u5b9a\u5411\u5f02\u5e38\u3001\u6a21\u677f\u6e32\u67d3\u6216\u4e0a\u4f20\u843d\u76d8\u4e8b\u4ef6"
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],
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"mitigation_summary": "\u4f18\u5148\u5347\u7ea7\u5230\u4fee\u590d\u7248\u672c\uff0c\u5e76\u540c\u65f6\u6536\u7d27\u8f93\u5165\u6821\u9a8c\u3001\u670d\u52a1\u7aef\u9274\u6743\u3001\u4ee3\u7406\u4fe1\u4efb\u8fb9\u754c\u3001\u6269\u5c55\u5b89\u88c5\u4fe1\u4efb\u548c\u5ba1\u8ba1\u65e5\u5fd7\u3002",
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"patch_validation_steps": [
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"\u786e\u8ba4\u76ee\u6807\u7248\u672c\u4ece `introduced=0, fixed<5.15.8` \u5347\u7ea7\u6216\u56de\u79fb\u5230 `5.15.8`\u3002",
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"\u4fdd\u7559\u540c\u4e00\u7ec4\u53d7\u63a7\u8f93\u5165\uff0c\u5728\u4fee\u590d\u524d\u540e\u5206\u522b\u6267\u884c\u5e76\u6bd4\u5bf9\u54cd\u5e94\u3001\u65e5\u5fd7\u4e0e\u6d4f\u89c8\u5668\u8bc1\u636e\u3002",
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"\u786e\u8ba4\u4fee\u590d\u540e\u4ec5\u4fdd\u7559\u9884\u671f\u4e1a\u52a1\u884c\u4e3a\uff0c\u4e0d\u518d\u89e6\u53d1\u8d8a\u6743\u3001\u56de\u663e\u3001\u5f02\u5e38\u6e32\u67d3\u6216\u9519\u8bef\u8bf7\u6c42\u3002",
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"\u8865\u5145 `file-upload` \u65cf\u81ea\u52a8\u5316\u56de\u5f52\uff0c\u907f\u514d\u540c\u7c7b\u8def\u5f84\u5728\u63d2\u4ef6\u3001\u4e3b\u9898\u6216\u4ee3\u7406\u94fe\u4e2d\u56de\u5f52\u3002"
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],
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"lab_safety_notes": [
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"\u53ea\u4f7f\u7528\u56de\u73af\u5730\u5740\u3001\u54e8\u5175\u76ee\u6807\u3001\u65e0\u5bb3\u6837\u672c\u6216\u53ef\u56de\u6eda\u6d4b\u8bd5\u6570\u636e\u3002",
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"\u7981\u6b62\u9020\u6210\u6301\u4e45\u7834\u574f\u3001\u8d8a\u6743\u4e0b\u8f7d\u771f\u5b9e\u6570\u636e\u6216\u4e0d\u53ef\u56de\u6eda side effect\u3002",
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"\u5982\u9700\u6d4f\u89c8\u5668\u8bc1\u636e\uff0c\u4fdd\u7559 baseline / proof \u4e24\u4efd\u5feb\u7167\u4ee5\u53ca console / network \u8bb0\u5f55\u3002"
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],
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"review_state": "ready"
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},
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"verification_status": "triage-manual",
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"verification_mode": "synthetic",
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"last_verified_at": null,
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"last_run_id": null,
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"evidence_bundle": null,
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"historical_status": null,
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"latest_status": null,
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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": "file-upload-generic",
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"artifact_mode": "synthetic",
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"blocked_reason": null,
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"metadata": {
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"source_names": [
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"OSV Astro"
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],
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"source_kinds": [
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"osv-batch"
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],
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"candidate_count": 1,
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"entity_ref_count": 2,
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"advisory_scope": "package",
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"version_confidence": "high",
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"workflow_id": "astro--CVE-2025-64765--workflow"
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}
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}
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