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busybox: busybox: tar extraction-root escape via deferred symlink/hardlink creation bypasses CVE-2026-26158 fix

🗓️ 12 Oct 2026 17:14:28Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 2 Views

Privilege escalation or arbitrary code execution in busybox tar via deferred link bypass.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Hardened Imagesanyaarch64busybox1.37.0-9.4.hum1busybox-1.37.0-9.4.hum1.aarch64.rpm
Red Hat Hardened Imagesanys390xbusybox1.37.0-9.4.hum1busybox-1.37.0-9.4.hum1.s390x.rpm
Red Hat Hardened Imagesanyx86_64busybox1.37.0-9.4.hum1busybox-1.37.0-9.4.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64busybox-petitboot1.37.0-9.4.hum1busybox-petitboot-1.37.0-9.4.hum1.aarch64.rpm
Red Hat Hardened Imagesanys390xbusybox-petitboot1.37.0-9.4.hum1busybox-petitboot-1.37.0-9.4.hum1.s390x.rpm
Red Hat Hardened Imagesanyx86_64busybox-petitboot1.37.0-9.4.hum1busybox-petitboot-1.37.0-9.4.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64busybox-shared1.37.0-9.4.hum1busybox-shared-1.37.0-9.4.hum1.aarch64.rpm
Red Hat Hardened Imagesanys390xbusybox-shared1.37.0-9.4.hum1busybox-shared-1.37.0-9.4.hum1.s390x.rpm
Red Hat Hardened Imagesanyx86_64busybox-shared1.37.0-9.4.hum1busybox-shared-1.37.0-9.4.hum1.x86_64.rpm

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12 Oct 2026 20:59Current
7.4High risk
Vulners AI Score7.4
CVSS 3.17
EPSS0.00196
SSVC
2