CVE-2026-18508
CVSS 4.4 · OrtaNVD: Modified
Açıklama (NVD)
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.
Yayın: 03.08.2026 · Son değişiklik: 05.11.2026 · Zayıflık: CWE-59
CVSS 3.1 metrikleri
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
| Saldırı vektörü | Yerel |
| Karmaşıklık | Düşük |
| Gereken yetki | Yok |
| Kullanıcı etkileşimi | Gerekli |
| Kapsam | Değişmez |
| Gizlilik | Düşük |
| Bütünlük | Düşük |
| Erişilebilirlik | Yok |
Hesaplanan temel puan: 4.4. CVSS hesaplayıcıda incele
Referanslar
- https://access.redhat.com/errata/RHSA-2026:50807
- https://access.redhat.com/errata/RHSA-2026:61581
- https://access.redhat.com/errata/RHSA-2026:61586
- https://access.redhat.com/errata/RHSA-2026:61783
- https://access.redhat.com/errata/RHSA-2026:66018
- https://access.redhat.com/errata/RHSA-2026:70390
- https://access.redhat.com/security/cve/CVE-2026-18508
- https://bugzilla.redhat.com/show_bug.cgi?id=2509843