What is CVE-2026-33489?

CVE-2026-33489 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. CoreDNS transfer plugin subzone ACL bypass via lexicographic zone comparison

Which CVE IDs does CVE-2026-33489 cover?

CVE-2026-33489 covers the following CVE IDs: CVE-2026-33489. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by CVE-2026-33489?

CVE-2026-33489 affects 1 product, including: azl3 coredns 1.11.4-15 on Azure Linux 3.0.

CVE-2026-33489High

CoreDNS transfer plugin subzone ACL bypass via lexicographic zone comparison

Vendor

Microsoft Security Response Center (MSRC)

Published

May 22, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-33489 →

🎯 Affected products1

azl3 coredns 1.11.4-15 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 1.11.4-16

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33489
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade