VYPR
Unrated severityOSV Advisory· Published Jul 27, 2026

Debian wolfssl: Missing SNI/ALPN binding on stateful (session-ID) resumption, which previously s…

CVE-2026-11703

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.

Affected products

2
  • WolfSSL/WolfsslOSV2 versions
    v5.9.1-stable, v5.9.0-stable, v5.8.4-stable, …+ 1 more
    • (no CPE)range: v5.9.1-stable, v5.9.0-stable, v5.8.4-stable, …
    • (no CPE)

Patches

Vulnerability mechanics

News mentions

0

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