What is CVE-2026-27448?

CVE-2026-27448 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback

Which CVE IDs does CVE-2026-27448 cover?

CVE-2026-27448 covers the following CVE IDs: CVE-2026-27448. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-27448Low

pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-27448 · pending