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CVE-2026-5704— Tar: tar: hidden file injection via crafted archives

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 10
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Red Hat Enterprise Linux 10是美国红帽（Red Hat）公司的一套面向企业用户的Linux操作系统。 Red Hat Enterprise Linux 10存在代码问题漏洞，该漏洞源于特制恶意归档文件，可能导致隐藏文件注入，绕过提取前检查机制。

CVSS 5.0 · Medium EPSS 0.40% · P32

Affected Version Matrix 12

VendorProduct Version RangeStatus
Red Hat Red Hat Discovery 2 1788205779< * unaffected
Red Hat Red Hat Enterprise Linux 10 2:1.35-13.el10_2< * unaffected
Red Hat Red Hat Enterprise Linux 6 any affected
Red Hat Red Hat Enterprise Linux 7 any affected
Red Hat Red Hat Enterprise Linux 8 2:1.30-13.el8_10< * unaffected
Red Hat Red Hat Enterprise Linux 9 2:1.34-13.el9_8< * unaffected
Red Hat Red Hat Hardened Images 1.35-10.hum1< * unaffected
Red Hat Red Hat Update Infrastructure 5 1788880445< * unaffected
1788880464< * unaffected
1788880456< * unaffected
1788765051< * unaffected
1788880581< * unaffected
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I. Basic Information for CVE-2026-5704

Vulnerability Information
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Vulnerability Title
Tar: tar: hidden file injection via crafted archives
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Enterprise Linux 10 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Enterprise Linux 10是美国红帽（Red Hat）公司的一套面向企业用户的Linux操作系统。 Red Hat Enterprise Linux 10存在代码问题漏洞，该漏洞源于特制恶意归档文件，可能导致隐藏文件注入，绕过提取前检查机制。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 2:1.35-13.el10_2 ~ * cpe:/o:redhat:enterprise_linux:10.2
Red Hat Red Hat Enterprise Linux 8 2:1.30-13.el8_10 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 9 2:1.34-13.el9_8 ~ * cpe:/o:redhat:enterprise_linux:9::baseos
Red Hat Red Hat Discovery 2 1788205779 ~ * cpe:/a:redhat:discovery:2::el9
Red Hat Red Hat Hardened Images 1.35-10.hum1 ~ * cpe:/a:redhat:hummingbird:1
Red Hat Red Hat Update Infrastructure 5 1788880445 ~ * cpe:/a:redhat:rhui:5::el9
Red Hat Red Hat Update Infrastructure 5 1788880464 ~ * cpe:/a:redhat:rhui:5::el9
Red Hat Red Hat Update Infrastructure 5 1788880456 ~ * cpe:/a:redhat:rhui:5::el9
Red Hat Red Hat Update Infrastructure 5 1788765051 ~ * cpe:/a:redhat:rhui:5::el9
Red Hat Red Hat Update Infrastructure 5 1788880581 ~ * cpe:/a:redhat:rhui:5::el9
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7

II. Public POCs for CVE-2026-5704

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III. Intelligence Information for CVE-2026-5704

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Vendor Advisories for CVE-2026-5704 (8)

Same Patch Batch · Red Hat · 2026-04-06 · 3 CVEs total

CVE-2026-5673 5.6 MEDIUM Libtheora: libtheora: denial of service or information disclosure via malformed avi file p
CVE-2026-37977 3.7 LOW Keycloak: org.keycloak.protocol.oidc.grants.ciba: keycloak: information disclosure via cor

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-434

V. Comments for CVE-2026-5704

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