更新: 2423 个文件 - 2026-03-18 14:23:01
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{
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"canonical_id": "symfony--CVE-2021-21424",
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"system_id": "symfony",
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"display_name": "Symfony",
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"category": "frameworks",
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"advisory_mode": "core",
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"title": "Prevent user enumeration using Guard or the new Authenticator-based Security",
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"summary": "Description\n-----------\n\nThe ability to enumerate users was possible without relevant permissions due to different exception messages depending on whether the user existed or not. It was also possible to enumerate users by using a timing attack, by comparing time elapsed when authenticating an existing user and authenticating a non-existing user.\n\nResolution\n----------\n\nWe now ensure that 403s are returned whether the user exists or not if the password is invalid or if the user does not exist.\n\nThe patch for this issue is available [here](https://github.com/symfony/symfony/commit/2a581d22cc621b33d5464ed65c4bc2057f72f011) for branch 3.4.\n\nCredits\n-------\n\nI would like to thank James Isaac and Mathias Brodala for reporting the issue and Robin Chalas for fixing the issue.",
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"published_at": "2021-05-13T20:23:02Z",
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"updated_at": "2026-03-13T22:16:14.858636Z",
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"severity": "low",
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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/symfony/symfony/security/advisories/GHSA-5pv8-ppvj-4h68",
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"secondary_source_urls": [
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"https://nvd.nist.gov/vuln/detail/CVE-2021-21424",
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"https://github.com/symfony/symfony/commit/2a581d22cc621b33d5464ed65c4bc2057f72f011",
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"https://symfony.com/cve-2021-21424",
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"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VRUS2H2SSOQWNLBD35SKIWIDQEMV2PD3",
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"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UC7BND775DVZDQT3RMGD2HVB2PKLJDJW",
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"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RH7TMM5CHQYBFFGXWRPJDPB3SKCZXI2M",
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"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KENRNLB3FYXYGDWRBH2PDBOZZKOD7VY4",
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"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VRUS2H2SSOQWNLBD35SKIWIDQEMV2PD3",
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"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UC7BND775DVZDQT3RMGD2HVB2PKLJDJW",
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"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RH7TMM5CHQYBFFGXWRPJDPB3SKCZXI2M",
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"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KENRNLB3FYXYGDWRBH2PDBOZZKOD7VY4",
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"https://lists.debian.org/debian-lts-announce/2023/07/msg00014.html",
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"https://github.com/symfony/symfony",
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"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2021-21424.yaml",
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"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2021-21424.yaml",
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"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2021-21424.yaml",
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"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-guard/CVE-2021-21424.yaml",
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"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/maker-bundle/CVE-2021-21424.yaml",
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"https://github.com/FriendsOfPHP/security-advisories/blob/master/lexik/jwt-authentication-bundle/CVE-2021-21424.yaml"
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],
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"aliases": [
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"BIT-symfony-2021-21424",
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"CVE-2021-21424",
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"GHSA-5pv8-ppvj-4h68"
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],
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"cve_ids": [
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"CVE-2021-21424"
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],
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"ghsa_ids": [
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"GHSA-5pv8-ppvj-4h68"
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],
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"osv_ids": [
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"GHSA-5pv8-ppvj-4h68"
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],
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"affected_versions": [
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"v2.8.0",
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"v2.8.1",
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"v2.8.10",
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"v2.8.11",
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"v2.8.12",
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"v2.8.13",
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"v2.8.14",
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"v2.8.15",
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"v2.8.16",
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"v2.8.17",
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"v2.8.18",
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"v2.8.19",
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"v2.8.2",
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"v2.8.20",
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"v2.8.21",
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"v2.8.22",
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"v2.8.23",
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"v2.8.24",
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"v2.8.25",
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"v2.8.26",
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"v4.0.0",
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"v4.0.1",
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"v4.0.10",
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"v4.0.11",
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"v4.0.12",
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"v4.0.13",
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"v4.0.14",
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"v4.0.15",
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"v4.0.2",
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"v4.0.3",
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"v4.0.4",
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"v4.0.5",
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"v4.0.6",
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"v4.0.7",
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"v4.0.8",
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"v4.0.9",
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"v4.1.0",
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"v4.1.0-BETA1",
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"v4.1.0-BETA2",
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"v4.1.0-BETA3",
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"v5.0.0",
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"v5.0.1",
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"v5.0.10",
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"v5.0.11",
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"v5.0.2",
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"v5.0.3",
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"v5.0.4",
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"v5.0.5",
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"v5.0.6",
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"v5.0.7",
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"v5.0.8",
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"v5.0.9",
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"v5.1.0",
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"v5.1.0-BETA1",
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"v5.1.0-RC1",
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"v5.1.0-RC2",
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"v5.1.1",
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"v5.1.10",
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"v5.1.11",
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"v5.1.2",
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"v2.0.0",
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"v2.0.1",
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"v2.0.2",
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"v2.0.3",
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"v2.1.0",
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"v2.1.1",
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"v2.10.0",
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"v2.10.1",
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"v2.10.2",
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"v2.10.3",
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"v2.10.4",
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"v2.10.5",
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"v2.10.6",
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"v2.2.0",
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"v2.3.0",
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"v2.4.0",
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"v2.4.1",
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"v2.4.2",
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"v2.4.3",
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"v2.4.4",
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"v2.11.0",
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"v2.11.1",
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"v2.11.2",
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"1.27.0",
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"v1.28.0",
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"v1.29.0",
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"v1.29.1",
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"v1.30.0",
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"v1.30.1",
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"v1.30.2",
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"v1.31.0",
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"v5.1.3",
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"v5.1.4",
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"v5.1.5",
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"v5.1.6",
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"v5.1.7",
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"v5.1.8",
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"v5.1.9",
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"v5.2.0",
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"v5.2.0-BETA1",
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"v5.2.0-BETA2",
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"v5.2.0-BETA3",
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"v5.2.0-RC1",
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"v5.2.0-RC2",
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"v5.2.1",
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"v5.2.2",
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"introduced=5.0.0, fixed<5.2.8",
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"introduced=2.8.0, fixed<3.4.48",
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"introduced=4.0.0, fixed<4.4.23",
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"introduced=2.0.0, fixed<2.10.7",
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"introduced=2.11.0, fixed<2.11.3",
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"introduced=1.27.0, fixed<1.29.2",
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"introduced=1.30.0, fixed<1.31.1",
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"introduced=5.1.0, fixed<5.2.8",
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"introduced=2.8.0, fixed<3.4.49",
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"introduced=4.0.0, fixed<4.4.24",
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"introduced=5.0.0, fixed<5.2.9"
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],
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"fixed_versions": [
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"5.2.8",
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"3.4.48",
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"4.4.23",
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"2.10.7",
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"2.11.3",
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"1.29.2",
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"1.31.1",
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"3.4.49",
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"4.4.24",
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"5.2.9"
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],
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"package_name": "symfony/symfony",
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"render_markdown": true,
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"case_path": "07-framework-security/frameworks/symfony/cases/symfony-cve-2021-21424.md",
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"secure_code_topics": [
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"xss-output-encoding",
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"authz-server-side-recheck",
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"path-traversal-guard"
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],
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"status": "generated",
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"triage_reasons": [],
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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": "xss-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 Symfony"
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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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}
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}
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