BusyBox: Archive Utils Path Traversal Enables Arbitrary File Overwrite
CVE-2026-26157 Published on February 11, 2026
Busybox: busybox: arbitrary file overwrite and potential code execution via incomplete path sanitization
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.
Vulnerability Analysis
CVE-2026-26157 can be exploited with local system access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Timeline
Reported to Red Hat.
Made public.
Weakness Type
External Control of File Name or Path
The software allows user input to control or influence paths or file names that are used in filesystem operations.
Products Associated with CVE-2026-26157
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Affected Versions
Red Hat Enterprise Linux 6:Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.