CVE-2026-5704

Tar: tar: hidden file injection via crafted archives

MEDIUM
5.5
CVSS Score
Published: April 6, 2026 at 03:17 PM UTC
Updated: September 22, 2026 at 10:17 PM UTC
3 products affected across 2 vendorsEnterprise LinuxHardened ImagesTar

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
Vendor states this is fixed in 2:1.30-13.el8_10 (unaffected)
Vendor states this is fixed in 2:1.34-13.el9_8 (unaffected)
Vendor states this is fixed in 2:1.35-13.el10_2 (unaffected)
Vendor states this is fixed in 1.35-10.hum1 (unaffected)

References (11)

VDB Entryx_refsource_REDHATThird Party Advisory
Source: cverecord
https://access.redhat.com/security/cve/CVE-2026-5704
Issue Trackingx_refsource_REDHATExploitThird Party Advisory
Source: cverecord
https://bugzilla.redhat.com/show_bug.cgi?id=2455360
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:61581
ExploitMailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/04/11/10
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/04/11/11
ExploitMailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/04/12/2
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:61783
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:61586

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-434

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