Veille CVE
CVE-2026-18508
4.4 MoyenneDescription
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.
Produits concernés
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Discovery 2
- Red Hat Hardened Images
- Red Hat Update Infrastructure 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat OpenShift Container Platform 4
- Gnu tar
- Redhat openshift container platform
- Redhat enterprise linux
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 4.4 Moyenne | secalert@redhat.com | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
Faiblesses (CWE)
Références
- https://access.redhat.com/errata/RHSA-2026:50807 Vendor Advisory
- 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 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2509843 Issue TrackingVendor Advisory