CVE-2026-4426

Katalog CVE

CVSS 6.5 · Medium EPSS 0,56%

Kerentanan Incorrect Bitwise Shift of Integer pada libarchive, redhat hardened images +2 lainnya. Skor CVSS 3.1 6.5 (Medium) menurut redhat.com.

Deskripsi (NVD)

A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper validation of a field (`pz_log2_bs`) read from ISO9660 Rock Ridge extensions. A remote attacker can exploit this by supplying a specially crafted ISO file. This can lead to incorrect memory allocation and potential application crashes, resulting in a denial-of-service (DoS) condition.

Rincian

Terbit di NVD

19 Maret 2026

Terakhir diubah

1 September 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-1335: Incorrect Bitwise Shift of Integer

EPSS (30 hari)

0,56% peluang dieksploitasi; lebih tinggi dari 45,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/libarchive/libarchive/pull/2897 issue tracking · patch
• https://access.redhat.com/security/cve/CVE-2026-4426 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=2449010 issue tracking · advisory pihak ketiga
• https://access.redhat.com/errata/RHSA-2026:8944