CVE-2026-26157

Published: Feb 11, 2026Modified: Jul 15, 2026Deferred

7.0

Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 1.0 / Impact: 5.9

Source: secalert@redhat.com (Secondary)

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.

Related CWEs

External Control of File Name or Path

The product allows user input to control or influence paths or file names that are used in filesystem operations.

References (9)

https://access.redhat.com/errata/RHSA-2026:13831

Source: secalert@redhat.com

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

Source: secalert@redhat.com

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

Source: secalert@redhat.com

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

Source: secalert@redhat.com

https://access.redhat.com/errata/RHSA-2026:13831

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

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

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

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

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://cert-portal.siemens.com/productcert/html/ssa-253495.html

Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26157.json

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Timeline

No history available yet.