# CVE-2026-26158: busybox: A flaw was found in BusyBox

CVE-2026-26158 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-26158, released February 11, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-26158
- Priority: High
- CVSS: 7.0 (high)
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 11, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | busybox Debian 14 | 1:1.37.0-10.1 | [DEBIAN-CVE-2026-26158](https://patchblox.com/security/data/fix/linux/debian-cve-2026-26158.md) | Feb 11, 2026 |
| Linux | busybox opensuse-leap 15.6 | 1.37.0-150500.10.17.1 | [SUSE-SU-2026:0758-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0758-1.md) | Mar 3, 2026 |
| Linux | busybox opensuse-leap 16.0 | 1.37.0-160000.5.1 | [OPENSUSE-SU-2026:20387-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20387-1.md) | Mar 18, 2026 |
| Linux | busybox sles 15.6 | 1.37.0-150500.10.17.1 | [SUSE-SU-2026:0758-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0758-1.md) | Mar 3, 2026 |
| Linux | busybox sles 15.7 | 1.37.0-150700.18.15.1 | [SUSE-SU-2026:0759-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0759-1.md) | Mar 3, 2026 |
| Linux | busybox sles 16.0 | 1.37.0-160000.5.1 | [SUSE-SU-2026:20905-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20905-1.md) | Mar 18, 2026 |
| Linux | busybox-links opensuse-leap 15.6 | 1.37.0-150500.7.11.1 | [SUSE-SU-2026:0758-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0758-1.md) | Mar 3, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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