CVE 6 MEDIUM

Missing SNI/ALPN binding on stateful (session-ID) TLS session resumption_CVE-2026-11703

6 / 10
MEDIUM
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Description

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.

Basic Information

ID CVE-2026-11703
Source wolfSSL
Published Jun 25, 2026 at 21:15

Affected Product

Vendor wolfSSL
Product wolfSSL
Version 3.15.0
Affected Versions wolfSSL wolfSSL 3.15.0

CWE Classification

References

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