What is CVE-2026-42256?

CVE-2026-42256 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. net-imap: Denial of service via high iteration count for `SCRAM-*` authentication

Which CVE IDs does CVE-2026-42256 cover?

CVE-2026-42256 covers the following CVE IDs: CVE-2026-42256. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by CVE-2026-42256?

CVE-2026-42256 affects 1 product, including: azl3 ruby 3.3.5-8 on Azure Linux 3.0.

CVE-2026-42256Medium

net-imap: Denial of service via high iteration count for `SCRAM-*` authentication

Vendor

Microsoft Security Response Center (MSRC)

Published

May 22, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-42256 →

🎯 Affected products1

azl3 ruby 3.3.5-8 on Azure Linux 3.0

🔗 References (1)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42256