CVE-2026-5704

A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, potentially allowing an attacker to introduce malicious files onto a system without detection.

• CWE-434

• https://access.redhat.com/security/cve/CVE-2026-5704Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2455360Exploit, Issue Tracking, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2026/04/11/10Exploit, Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2026/04/11/11Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2026/04/12/2Exploit, Mailing List, Third Party Advisory

Published

Apr 6, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

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