CVE-2026-5704 — MEDIUM (5.0)

Vulnerability 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.

CVSS Score

5.0

MEDIUM

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 Products

Vendor	Product	Versions
Gnu	Tar	-
Redhat	Hardened Images	-
Redhat	Enterprise Linux	6.0

Related Weaknesses (CWE)

CWE-434

References

https://access.redhat.com/security/cve/CVE-2026-5704Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2455360ExploitIssue TrackingThird Party Advisory
http://www.openwall.com/lists/oss-security/2026/04/11/10ExploitMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2026/04/11/11Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2026/04/12/2ExploitMailing ListThird Party Advisory

FAQ

What is CVE-2026-5704?

CVE-2026-5704 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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-...

How severe is CVE-2026-5704?

CVE-2026-5704 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-5704?

Check the references section above for vendor advisories and patch information. Affected products include: Gnu Tar, Redhat Hardened Images, Redhat Enterprise Linux.