CVE-2026-26018
EUVD-2026-1004306.03.2026, 16:16
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.
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| coredns.io | coredns | 𝑥 < 1.14.2 |
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 | 1782924920 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 | 1782924937 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 | 1780204232 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 | 1780204249 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 | 1774086225 ≤ 𝑥 < * | ADP |
Azure Linux Releases
Common Weakness Enumeration
- CWE-337 - Predictable Seed in Pseudo-Random Number Generator (PRNG)A Pseudo-Random Number Generator (PRNG) is initialized from a predictable seed, such as the process ID or system time.
- CWE-1241 - Use of Predictable Algorithm in Random Number GeneratorThe device uses an algorithm that is predictable and generates a pseudo-random number.
References