CVE-2026-5704

MEDIUM

Tar: tar: hidden file injection via crafted archives

Title source: cna

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.

References (5)

[Vdb Entry, X_Refsource_Redhat] https://access.redhat.com/security/cve/CVE-2026-5704

[Issue Tracking, X_Refsource_Redhat] https://bugzilla.redhat.com/show_bug.cgi?id=2455360

[Mailing List] http://www.openwall.com/lists/oss-security/2026/04/11/10

[Mailing List] http://www.openwall.com/lists/oss-security/2026/04/11/11

[Mailing List] http://www.openwall.com/lists/oss-security/2026/04/12/2

Scores

CVSS v3 5.0

EPSS 0.0003

EPSS Percentile 7.9%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-434

Status published

Products (13)

gnu/tar

Red Hat/Red Hat Enterprise Linux 10

Red Hat/Red Hat Enterprise Linux 6

Red Hat/Red Hat Enterprise Linux 7

Red Hat/Red Hat Enterprise Linux 8

Red Hat/Red Hat Enterprise Linux 9

Red Hat/Red Hat Hardened Images

redhat/enterprise_linux 6.0

redhat/enterprise_linux 7.0

redhat/enterprise_linux 8.0

... and 3 more

Published Apr 06, 2026

Tracked Since Apr 06, 2026