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CVE-2026-26157— Busybox: busybox: arbitrary file overwrite and potential code execution via incomplete path sanitization

Quick assessment

Affected
Red Hat Red Hat Hardened Images
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.

BusyBox是乌克兰Denis Vlasenko个人开发者的一套包含了多个linux命令和工具的应用程序。 BusyBox存在安全漏洞，该漏洞源于其归档提取工具路径清理不完整，可能导致提取恶意归档时任意文件覆盖，进而可能执行代码。

CVSS 7.0 · High EPSS 0.68% · P49

Public Exploits 1

ExploitDB · 1 EDB-52538 [webapps]

Affected Version Matrix 2

VendorProduct Version RangeStatus
Red Hat Red Hat Enterprise Linux 6 any unknown
Red Hat Red Hat Hardened Images 1.37.0-7.2.hum1< * unaffected
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I. Basic Information for CVE-2026-26157

Vulnerability Information
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Vulnerability Title
Busybox: busybox: arbitrary file overwrite and potential code execution via incomplete path sanitization
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in BusyBox. Incomplete path sanitization in its archive extraction utilities allows an attacker to craft malicious archives that when extracted, and under specific conditions, may write to files outside the intended directory. This can lead to arbitrary file overwrite, potentially enabling code execution through the modification of sensitive system files.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
BusyBox 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BusyBox是乌克兰Denis Vlasenko个人开发者的一套包含了多个linux命令和工具的应用程序。 BusyBox存在安全漏洞，该漏洞源于其归档提取工具路径清理不完整，可能导致提取恶意归档时任意文件覆盖，进而可能执行代码。
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 Hardened Images 1.37.0-7.2.hum1 ~ * cpe:/a:redhat:hummingbird:1
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6

II. Public POCs for CVE-2026-26157

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III. Intelligence Information for CVE-2026-26157

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Vendor Advisories for CVE-2026-26157 (2)

IV. Related Vulnerabilities

Same product: Red Hat Hardened Images
Same vendor: Red Hat
Same weakness: CWE-73

V. Comments for CVE-2026-26157

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