CVE-2026-11703 | Missing SNI/ALPN binding on stateful (session-ID) resumption… | CVSS 6.0 MEDIUM

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.

Metadata

CVE ID: CVE-2026-11703
State: PUBLISHED
Assigner: wolfSSL
Reserved: 2026-06-08 22:32 UTC
Published: 2026-06-25 21:15 UTC
Last updated: 2026-06-25 21:15 UTC
Primary CWE: CWE-287
CWE-287 Improper Authentication
Vendor / Product: wolfSSL / wolfSSL
Sources: cve.org · NVD

Severity & Metrics

6.0 MEDIUM CVSS 4.0

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

Affected products (1)

Vendor	Product	Platform	Versions
wolfSSL	wolfSSL	—	3.15.0 ≤ 5.9.1

Weakness (CWE)

CWE	Source	Description
CWE-287	cna	CWE-287 Improper Authentication

CVSS scores (1)

Score	Severity	Version	Source	Vector
6.0	MEDIUM	4.0	cna	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

References (2)