NULL Pointer Dereference Affecting github.com/coredns/coredns/plugin/pkg/proxyproto package, versions <1.14.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMCOREDNSCOREDNSPLUGINPKGPROXYPROTO-18017741
- published19 Jul 2026
- disclosed16 Jul 2026
- creditOmkhar Arasaratnam
Introduced: 16 Jul 2026
CVE-2026-62309 Â (opens in a new tab)How to fix?
Upgrade github.com/coredns/coredns/plugin/pkg/proxyproto to version 1.14.4 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference via the proxyproto plugin when handling a PROXY v2 datagram with a non-UDP transport. An attacker can cause the process to crash by sending a specially crafted 28-byte UDP packet when the plugin is enabled.