Description
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.
Problem types
Unrestricted Upload of File with Dangerous Type
Product status
Timeline
| 2026-04-06: | Reported to Red Hat. |
| 2026-04-06: | Made public. |
Credits
Red Hat would like to thank Guillermo de Angel Garcia for reporting this issue.
References
www.openwall.com/lists/oss-security/2026/04/11/10
www.openwall.com/lists/oss-security/2026/04/11/11
www.openwall.com/lists/oss-security/2026/04/12/2
access.redhat.com/security/cve/CVE-2026-5704
bugzilla.redhat.com/show_bug.cgi?id=2455360 (RHBZ#2455360)