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{"bugzilla": {"description": "node-tar: tar: node-tar: Arbitrary file creation via path traversal bypass in hardlink security check", "id": "2433645", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2433645"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.2", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N", "status": "draft"}, "cwe": "(CWE-22|CWE-59)", "details": ["A flaw was found in node-tar, a Node.js module for handling TAR archives. This vulnerability allows a remote attacker to bypass path traversal protections by crafting a malicious TAR archive. The security check for hardlink entries uses different path resolution logic than the actual hardlink creation, enabling the attacker to create hardlinks to arbitrary files outside the intended extraction directory. 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["https://www.cve.org/CVERecord?id=CVE-2026-24842\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-24842\nhttps://github.com/isaacs/node-tar/commit/f4a7aa9bc3d717c987fdf1480ff7a64e87ffdb46\nhttps://github.com/isaacs/node-tar/security/advisories/GHSA-34x7-hfp2-rc4v"], "statement": "This is an IMPORTANT vulnerability in node-tar, a Node.js module for handling TAR archives. The flaw allows an attacker to bypass path traversal protections by crafting a malicious TAR archive. This could lead to the creation of hardlinks to arbitrary files outside the intended extraction directory, potentially resulting in unauthorized information disclosure or further system compromise in affected Red Hat products utilizing node-tar for archive processing.", "threat_severity": "Important"}

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