What is CVE-2026-54886?

CVE-2026-54886 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. SSH SFTP server denial of service via extended channel data infinite loop

Which CVE IDs does CVE-2026-54886 cover?

CVE-2026-54886 covers the following CVE IDs: CVE-2026-54886. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by CVE-2026-54886?

CVE-2026-54886 affects 2 products, including: azl3 erlang 26.2.5.21-2 on Azure Linux 3.0; azl3 erlang 26.2.5.21-4 on Azure Linux 3.0.

CVE-2026-54886Medium

SSH SFTP server denial of service via extended channel data infinite loop

Vendor

Microsoft Security Response Center (MSRC)

Published

July 7, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-54886 →

🎯 Affected products2

azl3 erlang 26.2.5.21-2 on Azure Linux 3.0
azl3 erlang 26.2.5.21-4 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 26.2.5.21-3 KBCBL-Mariner Releases (Security Update) — fixed build 26.2.5.21-4

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54886
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade