HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-11703 — Missing SNI/ALPN binding on stateful (session-ID) resumption, which previously s...

·Source: NIST NVD

Updated:

Executive Summary

Missing SNI/ALPN binding on stateful (session-ID) resumption, which previously skipped the binding check performed for ticket-based resumption. A cached session could be resumed under a different SNI/ALPN than originally negotiated and, where client-authentication policy differs across virtual hosts, carry the cached peer-authentication state into a context it was not established for. Resumption n

Analysis

Missing SNI/ALPN binding on stateful (session-ID) resumption, which previously skipped the binding check performed for ticket-based resumption. A cached session could be resumed under a different SNI/ALPN than originally negotiated and, where client-authentication policy differs across virtual hosts, carry the cached peer-authentication state into a context it was not established for. Resumption now verifies the SNI/ALPN binding for all paths and declines (falling back to a full handshake) on mismatch. CVSS Score: 7.5. Published: 2026-06-25T22:17:00.217.

Indicators of Compromise (1)

CVE (1)
CVE-2026-11703
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Jun 25, 2026. Verified by: NIST.

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