What is CVE-2026-107302?

CVE-2026-107302 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. msgpack5: Truncated map32 headers throw an unexpected error

Which CVE IDs does CVE-2026-107302 cover?

CVE-2026-107302 covers the following CVE IDs: CVE-2026-107302. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-107302?

CVE-2026-107302 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-107302?

CVE-2026-107302 affects 1 product, including: azl3 msgpack 3.3.0-1 on Azure Linux 3.0.

CVE-2026-107302HighCVSS 7.5

msgpack5: Truncated map32 headers throw an unexpected error

Vendor

Microsoft Security Response Center (MSRC)

Published

October 10, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-107302 →

🎯 Affected products1

azl3 msgpack 3.3.0-1 on Azure Linux 3.0

✅ Remediation

KBRelease Notes (Security Update)

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-107302
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade