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{"bugzilla": {"description": "next: Next.js: Server-Side Request Forgery via malicious host redirection in Server Actions", "id": "2507639", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507639"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.2", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "status": "draft"}, "cwe": "CWE-918", "details": ["A flaw was found in Next.js, a framework for building web applications. A remote attacker can exploit this vulnerability by manipulating Host-associated headers when a Server Action forwards or redirects a request. This can lead to Server-Side Request Forgery (SSRF), where the server is tricked into making requests to an attacker-controlled host. Such an attack could potentially expose internal system information or bypass authorization controls."], "name": "CVE-2026-64649", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "impact": "important", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "impact": "important", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "impact": "important", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "impact": "important", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "impact": "important", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "impact": "important", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "impact": "important", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:3", "fix_state": "Affected", "impact": "important", "package_name": "rhelai3/bootc-cuda-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI) 3"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:3", "fix_state": "Affected", "impact": "important", "package_name": "rhelai3/bootc-gaudi-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI) 3"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:3", "fix_state": "Affected", "impact": "important", "package_name": "rhelai3/bootc-rocm-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI) 3"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:3", "fix_state": "Affected", "impact": "important", "package_name": "rhelai3/disk-image-cuda-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI) 3"}, {"cpe": "cpe:/a:redhat:trusted_artifact_signer:1", "fix_state": "Affected", "impact": "important", "package_name": "rhtas/rekor-search-ui-rhel9", "product_name": "Red Hat Trusted Artifact Signer"}, {"cpe": "cpe:/a:redhat:amq_streams:2", "fix_state": "Affected", "impact": "important", "package_name": "next", "product_name": "streams for Apache Kafka 2"}, {"cpe": "cpe:/a:redhat:amq_streams:3", "fix_state": "Affected", "impact": "important", "package_name": "next", "product_name": "streams for Apache Kafka 3"}], "public_date": "2026-07-27T19:27:58Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64649\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64649\nhttps://github.com/vercel/next.js/commit/b51206321854193208c0805ba42acc49287f942b\nhttps://github.com/vercel/next.js/commit/e3e5666ccead3a15162793d697af5e48b7cc0498\nhttps://github.com/vercel/next.js/releases/tag/v15.5.21\nhttps://github.com/vercel/next.js/releases/tag/v16.2.11\nhttps://github.com/vercel/next.js/security/advisories/GHSA-89xv-2m56-2m9x"], "statement": "This Important Server-Side Request Forgery (SSRF) flaw in Next.js Server Actions allows an attacker to redirect outbound requests to a malicious host. This is particularly relevant for Red Hat customers deploying Next.js applications on custom servers or without a proxy that enforces host header validation, as it could lead to unauthorized internal network access or information disclosure. Managed hosting environments and applications using `next start` or standalone output from version 14.2 onwards are not affected.", "threat_severity": "Important"}