High7.0Red Hat & Ubuntu Linux
Arbitrary file modification and privilege escalation via unvalidated tar archive entries
CVE-2026-26158 Published Feb 11, 2026
CVE-2026-26158
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Arbitrary file modification and privilege escalation via unvalidated tar archive entries. Red Hat rates this important (CVSS 7). Weakness: CWE-73. Affected package(s): busybox-main. Resolved in Red Hat advisory RHSA-2026:13831 — update the affected packages (`sudo dnf update`).
Affected versions
- busybox-main-1.37.0-7.2.hum1
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Fixed versions
- RHSA-2026:13831
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:13831 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
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