What is CVE-2026-94637?

CVE-2026-94637 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. Apache Thrift: Go `THeaderTransport` does not bound the inflated size of a ZLIB frame

Which CVE IDs does CVE-2026-94637 cover?

CVE-2026-94637 covers the following CVE IDs: CVE-2026-94637. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by CVE-2026-94637?

CVE-2026-94637 affects 3 products, including: azl3 kata-containers-cc 3.15.0.aks0-21 on Azure Linux 3.0; azl3 telegraf 1.31.0-33 on Azure Linux 3.0; azl3 vitess 19.0.4-14 on Azure Linux 3.0.

CVE-2026-94637Medium

Apache Thrift: Go `THeaderTransport` does not bound the inflated size of a ZLIB frame

Vendor

Microsoft Security Response Center (MSRC)

Published

October 7, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-94637 →

🎯 Affected products3

azl3 kata-containers-cc 3.15.0.aks0-21 on Azure Linux 3.0
azl3 telegraf 1.31.0-33 on Azure Linux 3.0
azl3 vitess 19.0.4-14 on Azure Linux 3.0

✅ Remediation

KBRelease Notes (Security Update) KBRelease Notes (Security Update) — fixed build 1.31.0-34 KBRelease Notes (Security Update) — fixed build 19.0.4-15

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-94637
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade