CVE-2026-26018

Katalog CVE

CVSS 7.5 · High EPSS 0,79%

Kerentanan Predictable Seed in Pseudo-Random Number Generator (PRNG) pada coredns.io coredns. Skor CVSS 3.1 7.5 (High) menurut github.com.

Deskripsi (NVD)

CoreDNS is a DNS server that chains plugins. Prior to version 1.14.2, a denial of service vulnerability exists in CoreDNS's loop detection plugin that allows an attacker to crash the DNS server by sending specially crafted DNS queries. The vulnerability stems from the use of a predictable pseudo-random number generator (PRNG) for generating a secret query name, combined with a fatal error handler that terminates the entire process. This issue has been patched in version 1.14.2.

Rincian

Terbit di NVD

6 Maret 2026

Terakhir diubah

15 Juli 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-337: Predictable Seed in Pseudo-Random Number Generator (PRNG)
CWE-400: Uncontrolled Resource Consumption
CWE-770: Allocation of Resources Without Limits or Throttling
CWE-1241: Use of Predictable Algorithm in Random Number Generator

EPSS (30 hari)

0,79% peluang dieksploitasi; lebih tinggi dari 54,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/coredns/coredns/security/advisories/GHSA-h75p-j8xm-m278 exploit · advisory vendor
• https://github.com/coredns/coredns/releases/tag/v1.14.2 product · release notes
• https://access.redhat.com/errata/RHSA-2026:25127
• https://access.redhat.com/errata/RHSA-2026:36873
• https://access.redhat.com/errata/RHSA-2026:8151
• https://access.redhat.com/security/cve/CVE-2026-26018
• https://bugzilla.redhat.com/show_bug.cgi?id=2445242
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26018.json