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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
5.0MEDIUM
NVD MITRE
EPSS Score
0.4%
Top 65.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only
Self-Check
OpenVAS

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

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
commercial·USaka redhat
Red Hat Enterprise Linux 10On-premOS
Operating Systems / linux-distro
Red Hat Hardened ImagesOn-premOS
Operating Systems / linux-distro
hardened imagesOn-prem
Operating Systems / linux-distro
gnu
oss-project·USaka g. nu
tar
OSS Libraries
and 5 more affected products View all →

Exploitability

Workaround Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

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 →
News mentions
Could not load news mentions.

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