CVE-2026-5704
Tar: tar: hidden file injection via crafted archives
CVSS Score
5.0
EPSS Score
0.0%
EPSS Percentile
7th
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 | CWE-434 |
| Vendor | red hat |
| Product | red hat enterprise linux 10 |
| Published | Apr 6, 2026 |
| Last Updated | Apr 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected Versions
Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Hardened Images
All versions affected References
access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-5704 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2455360 openwall.com: http://www.openwall.com/lists/oss-security/2026/04/11/10 openwall.com: http://www.openwall.com/lists/oss-security/2026/04/11/11 openwall.com: http://www.openwall.com/lists/oss-security/2026/04/12/2
Credits
Red Hat would like to thank Guillermo de Angel Garcia for reporting this issue.