CVE-2026-87766

Katalog CVE

CVSS 8.8 · High EPSS 0,15%

Kerentanan Improper Link Resolution Before File Access ('Link Following'). Skor CVSS 3.1 8.8 (High) menurut redhat.com.

Deskripsi (NVD)

A flaw was found in bubblewrap. During sandbox setup, creating files or directories under the new root can follow a parent symlink onto the host via /oldroot, writing attacker-chosen paths outside the sandbox as the launching user. This happens before the sandboxed process starts. This issue is GHSA-pxhw-h44j-8pfx. It is fixed in bubblewrap 0.12.0.

Rincian

Terbit di NVD

9 September 2026

Terakhir diubah

22 September 2026

Status NVD

Awaiting Analysis

CVSS 3.1

8.8 (High), sumber redhat.com
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-59: Improper Link Resolution Before File Access ('Link Following')

EPSS (30 hari)

0,15% peluang dieksploitasi; lebih tinggi dari 3,7% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://access.redhat.com/security/cve/CVE-2026-87766
• https://bugs.debian.org/1145655
• https://bugzilla.redhat.com/show_bug.cgi?id=2530542
• https://github.com/containers/bubblewrap/releases/tag/v0.12.0
• https://github.com/containers/bubblewrap/security/advisories/GHSA-pxhw-h44j-8pfx
• https://www.openwall.com/lists/oss-security/2026/08/27/7
• http://www.openwall.com/lists/oss-security/2026/09/09/3
• http://www.openwall.com/lists/oss-security/2026/09/22/23