Technology · CoreDNS
CoreDNS vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 13 vulnerabilities in CoreDNS: 0 in the last 7 days and 5 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-86003, was published on 16 September 2026.
- Last 7 days
- 0
- Last 90 days
- 5
- Critical, all time
- 1
- Exploited in the wild
- 0
About CoreDNS
CoreDNS is a flexible, extensible DNS server that can serve as the Kubernetes cluster DNS.
Latest CoreDNS vulnerabilities
- CVE-2026-86003: CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and…highCVSS 7.5EPSS 0.4%
- CVE-2026-82399: CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and…highCVSS 7.5EPSS 0.6%
- CVE-2026-62994: CoreDNS panic in transfer plugin via k8s_external headless serviceslowCVSS 3.7
- CVE-2026-62309: CoreDNS NULL pointer dereference in proxyproto pluginhighCVSS 7.5
- CVE-2026-62299: CoreDNS NULL pointer dereference in rewrite pluginmediumCVSS 5.3
- CVE-2026-35579: CoreDNS TSIG authentication bypass in gRPC, QUIC, and DoH transportscriticalCVSS 9.8EPSS 0.8%
- CVE-2026-33489: CoreDNS incorrect authorization in transfer plugin ACL selectionhighCVSS 7.5EPSS 0.4%
- CVE-2026-33190: CoreDNS tsig authentication bypass in encrypted transportshighCVSS 7.5EPSS 0.5%
- CVE-2026-32936: CoreDNS denial of service via oversized DoH GET requestshighCVSS 7.5EPSS 0.6%
- CVE-2026-32934: CoreDNS resource exhaustion in DNS-over-QUIC serverhighCVSS 7.5EPSS 0.6%
- CVE-2026-26018: CoreDNS denial of service in loop detection pluginhighCVSS 7.5EPSS 0.8%
- CVE-2026-26017: CoreDNS access control bypass via plugin execution orderhighCVSS 7.7EPSS 0.5%
- CVE-2023-30464: CoreDNS DNS cache poisoning via birthday attacklowCVSS 3.7EPSS 0.4%
Most severe CoreDNS vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-35579: CoreDNS TSIG authentication bypass in gRPC, QUIC, and DoH transportscriticalCVSS 9.8EPSS 0.8%
- CVE-2026-26017: CoreDNS access control bypass via plugin execution orderhighCVSS 7.7EPSS 0.5%
- CVE-2026-26018: CoreDNS denial of service in loop detection pluginhighCVSS 7.5EPSS 0.8%
- CVE-2026-32934: CoreDNS resource exhaustion in DNS-over-QUIC serverhighCVSS 7.5EPSS 0.6%
- CVE-2026-82399: CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and…highCVSS 7.5EPSS 0.6%
- CVE-2026-32936: CoreDNS denial of service via oversized DoH GET requestshighCVSS 7.5EPSS 0.6%
- CVE-2026-33190: CoreDNS tsig authentication bypass in encrypted transportshighCVSS 7.5EPSS 0.5%
- CVE-2026-86003: CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and…highCVSS 7.5EPSS 0.4%
- CVE-2026-33489: CoreDNS incorrect authorization in transfer plugin ACL selectionhighCVSS 7.5EPSS 0.4%
- CVE-2026-62309: CoreDNS NULL pointer dereference in proxyproto pluginhighCVSS 7.5
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 3 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 2 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/coredns.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "CoreDNS vulnerabilities", https://junglewise.ai/threats/technologies/coredns, 26 September 2026.