The vulnerability of the dns.Msg.Unpack() function in the plugin/pkg/doh/doh.go, core/dnsserver/server_quic.go, and core/dnsserver/server_grpc.go files of the coredns server allows a attacker to compromise the integrity of the protected information.
🗓️ 18 Sep 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 3 Views
| Reporter | Title | Published | Views | Family All 64 |
|---|---|---|---|---|
 | CVE-2026-86003 vulnerabilities | 19 Sep 202602:54 | – | cgr |
 | CVE-2026-86003 | 17 Sep 202622:35 | – | circl |
 | CVE-2026-86003 | 16 Sep 202618:39 | – | cve |
 | CVE-2026-86003 CoreDNS DoH/DoQ/gRPC bypass UPDATE rejection enforced on UDP/TCP | 16 Sep 202618:39 | – | cvelist |
 | EUVD-2026-80989 | 17 Sep 202620:33 | – | euvd |
 | CoreDNS DoH/DoQ/gRPC bypass UPDATE rejection enforced on UDP/TCP | 17 Sep 202620:33 | – | github |
 | CoreDNS DoH/DoQ/gRPC bypass UPDATE rejection enforced on UDP/TCP | 18 Sep 202608:01 | – | mscve |
 | CVE-2026-86003 | 16 Sep 202619:17 | – | nvd |
 | AZL-101835 CVE-2026-86003 affecting package coredns 1.11.4-20 | 16 Sep 202619:17 | – | osv |
| CGA-29P4-RHMF-6QV6 | 18 Sep 202612:54 | – | osv |
10
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
18 Sep 2026 00:00Current
CVSS 37.5
CVSS 27.8
EPSS0.00436