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CVE-2026-5704

Tar: tar: hidden file injection via crafted archives

Published: Apr 6, 2026Updated: Apr 22, 2026 Sources: CVE List NVDCWE-434
NVD MITRE
5.0CVSSMEDIUM
EPSS Score
0.4%
Top 65.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

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 Vector Breakdown

AV:LAC:LPR:LUI:RS:UC:NI:HA:N
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 Enterprise Linux 10Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 6Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 7Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 8Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 9Red Hat
On-premOS
Operating Systems / linux-distro
red hatcommercialUSOperating Systemsaka red hat
and 4 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Workaround Available

MITRE ATT&CK

3 techniques
Command and Control
Initial Access
Persistence
View detailed technique mapping

References

https://access.redhat.com/security/cve/CVE-2026-5704
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2455360
bugzilla.redhat.com
http://www.openwall.com/lists/oss-security/2026/04/11/10
openwall.com
and 2 more references View all →

Timeline

Published
Apr 6, 2026
Last Updated
Apr 22, 2026

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