CVE-2026-5704

Tar: tar: hidden file injection via crafted archives

Published: Apr 6, 2026Updated: Sep 22, 2026 Sources: CVE List NVDCWE-434

5.0MEDIUM

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:LAttack Vector

Local

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:RUser Interaction

Required

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:HIntegrity

High

A:NAvailability

None

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Weaknesses

CWE-434

Affected Products

Red Hat

commercial·USaka redhat

hardened imagesOn-prem

Operating Systems / linux-distro

Red Hat Enterprise Linux 10On-premOS

Operating Systems / linux-distro

Red Hat Discovery 2On-premWeb App

Enterprise Software / itsm-monitoring

Red Hat Hardened ImagesOn-premOS

Operating Systems / linux-distro

Red Hat Update Infrastructure 5

Operating Systems / linux-distro

gnu

oss-project·USaka g. nu

tar

OSS Libraries

and 5 more affected products View all →

Exploitability

Workaround Available

Is your org exposed to CVE-2026-5704?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques

Command and Control

Initial Access

Persistence

View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2026:61581

access.redhat.com

https://access.redhat.com/errata/RHSA-2026:61586

access.redhat.com

https://access.redhat.com/errata/RHSA-2026:61783

access.redhat.com

and 8 more references View all →

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