CVE-2026-80430

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Entry names are sanitised against path separators and dot components, but symlink targets are not validated. Files are created with O_CREAT | O_WRONLY | O_EXCL at mode 0644, so existing files cannot be overwritten, and directories are created with mkdirat() at mode 0755, so the attacker can create intermediate directories that did not previously exist. 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Entry names are sanitised against path separators and dot components, but symlink targets are not validated. Files are created with <code>O_CREAT | O_WRONLY | O_EXCL</code> at mode <code>0644</code>, so existing files cannot be overwritten, and directories are created with <code>mkdirat()</code> at mode <code>0755</code>, so the attacker can create intermediate directories that did not previously exist. 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Otero Jorge", "type": "analyst"}, {"lang": "en", "value": "Secur0 CNA", "type": "coordinator"}, {"lang": "en", "value": "Kovid Goyal", "type": "remediation developer"}], "source": {"discovery": "INTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-25T15:27:29.989878Z", "id": "CVE-2026-80430", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-25T15:29:22.714Z"}}]}}

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Entry names are sanitised against path separators and dot components, but symlink targets are not validated. Files are created with O_CREAT | O_WRONLY | O_EXCL at mode 0644, so existing files cannot be overwritten, and directories are created with mkdirat() at mode 0755, so the attacker can create intermediate directories that did not previously exist. 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Entry names are sanitised against path separators and dot components, but symlink targets are not validated. Files are created with <code>O_CREAT | O_WRONLY | O_EXCL</code> at mode <code>0644</code>, so existing files cannot be overwritten, and directories are created with <code>mkdirat()</code> at mode <code>0755</code>, so the attacker can create intermediate directories that did not previously exist. 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{}

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