CVEvulnerability
CVE-2026-26158
7.0 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-02-11
- Last modified
- 2026-07-15
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-73
Description
A flaw was found in BusyBox. This vulnerability allows an attacker to modify files outside of the intended extraction directory by crafting a malicious tar archive containing unvalidated hardlink or symlink entries. If the tar archive is extracted with elevated privileges, this flaw can lead to privilege escalation, enabling an attacker to gain unauthorized access to critical system files.
Related
Weakness · CWE (1)
- CWE-73 External Control of File Name or Path weakness
References
- https://access.redhat.com/errata/RHSA-2026:13831 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-26158 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2439040 bugzilla.redhat.com
- https://git.busybox.net/busybox/commit/archival?id=3fb6b31c716669e12f75a2accd31bb7685b1a1cb git.busybox.net
- https://access.redhat.com/errata/RHSA-2026:13831 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-26158 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2439040 bugzilla.redhat.com
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html cert-portal.siemens.com
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26158.json security.access.redhat.com