CVE-2026-26158
Busybox: busybox: arbitrary file modification and privilege escalation via unvalidated tar archive entries
Vexday Risk Score
21Baixo
Decisão SSVC (CISA)
Track
Sem sinal de exploração → monitorar
CVSS 7EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Ciclo de vida
11 fev 2026Publicada no NVD
Recomendação: Monitorar — sem sinal de exploração no momento.
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.
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
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Falar com a TrueHacking →Referências
https://access.redhat.com/errata/RHSA-2026:13831https://access.redhat.com/security/cve/CVE-2026-26158https://bugzilla.redhat.com/show_bug.cgi?id=2439040https://cert-portal.siemens.com/productcert/html/ssa-253495.htmlhttps://git.busybox.net/busybox/commit/archival?id=3fb6b31c716669e12f75a2accd31bb7685b1a1cb