CVE-2026-26157

HIGH7.0

Busybox: busybox: arbitrary file overwrite and potential code execution via incomplete path sanitization

Published Feb 11, 2026

Modified 6 days ago

Details

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.

References

WEB

https://access.redhat.com/security/cve/CVE-2026-26157

WEB

https://bugzilla.redhat.com/show_bug.cgi?id=2439039

WEB

https://git.busybox.net/busybox/commit/archival?id=3fb6b31c716669e12f75a2accd31bb7685b1a1cb

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-26157

CVSS Analysis

CVSS v3.1

7.0