PT-2026-60581 · Coredns · Coredns

CVE-2026-62299 · Publicado 2026-07-16 · Atualizado 2026-07-16

Mitre

CVSS v3.1

5.3

Média

Vetor base

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CoreDNS is a DNS server written in Go. Prior to 1.14.5, the CoreDNS rewrite plugin supports edns0 rewrite rules with an optional revert flag, and two response rules, edns0SetResponseRule and edns0ReplaceResponseRule[T] in plugin/rewrite/edns0.go, call res.IsEdns0() and immediately dereference the returned *dns.OPT without a nil check when a downstream plugin returns a response with no OPT record. A remote, unauthenticated client can send a single ordinary DNS query matching a rewrite edns0 <local|nsid|subnet> <set|append|replace> ... revert rule, causing ResponseReverter in plugin/rewrite/reverter.go to panic, return SERVFAIL, and degrade availability, or crash the CoreDNS process if the debug directive disables recovery. This issue is fixed in version 1.14.5.

Correção

NULL Pointer Dereference

Enumeração de Fraquezas

CWE-476

Identificadores relacionados

CVE-2026-62299

Produtos afetados

Coredns

Referências · 5

• https://github.com/coredns/coredns/releases/tag/v1.14.5 · Nota
• https://github.com/coredns/coredns/commit/fc447d0658b093edc8cd29a6b171216a44a644c2 · Nota
• https://github.com/coredns/coredns/pull/8190 · Nota
• https://github.com/coredns/coredns/security/advisories/GHSA-9pmm-cxww-rrr7 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-62299 · Nota de Segurança