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NVD Vulnerability Details :
CVE-2026-26158
Awaiting Analysis
More InfoOfficial Page
Source-secalert@redhat.com
View Known Exploited Vulnerability (KEV) details
Published At-11 Feb, 2026 | 21:16
Updated At-12 Feb, 2026 | 15:10

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.17.0HIGH
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Type: Primary
Version: 3.1
Base score: 7.0
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-73Primarysecalert@redhat.com
CWE ID: CWE-73
Type: Primary
Source: secalert@redhat.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://access.redhat.com/security/cve/CVE-2026-26158secalert@redhat.com
N/A
https://bugzilla.redhat.com/show_bug.cgi?id=2439040secalert@redhat.com
N/A
https://git.busybox.net/busybox/commit/archival?id=3fb6b31c716669e12f75a2accd31bb7685b1a1cbsecalert@redhat.com
N/A
Hyperlink: https://access.redhat.com/security/cve/CVE-2026-26158
Source: secalert@redhat.com
Resource: N/A
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2439040
Source: secalert@redhat.com
Resource: N/A
Hyperlink: https://git.busybox.net/busybox/commit/archival?id=3fb6b31c716669e12f75a2accd31bb7685b1a1cb
Source: secalert@redhat.com
Resource: N/A
Change History
0Changes found

Details not found