PT-2026-67425 · Red Hat · Red Hat Enterprise Linux 10+6

Pavel Cahyna · CVE-2026-18508 · Publicado 2026-08-03 · Atualizado 2026-08-03

Mitre

CVSS v3.1

4.4

Média

Vetor base

AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

A flaw was found in GNU tar. When extracting an archive with the --one-top-level option, hardlink targets are not confined to the designated top-level directory and may resolve relative to the extraction working directory. A crafted archive can create hardlinks that escape the intended boundary and, when combined with a preexisting symbolic link under the working directory, may allow writing outside that boundary during a single extraction.

Correção

Link Following

Enumeração de Fraquezas

CWE-59

Identificadores relacionados

CVE-2026-18508

Produtos afetados

Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 6

Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

Red Hat Hardened Images

Red Hat Openshift Container Platform 4

Referências · 3

• https://access.redhat.com/security/cve/CVE-2026-18508 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-18508 · Nota de Segurança
• https://bugzilla.redhat.com/show_bug.cgi?id=2509843 · Nota