CVE-2026-81535

In wolfSSH through 1.5.0 built with --enable-fwd, DoChannelOpen in src/internal.c gates only direct-tcpip channel opens with the forwarding policy callback. forwarded-tcpip opens are admitted without an authorization check and are not capped in number, allowing a malicious SSH peer to make an...

CVE-2026-81535 wolfSSH SSH client accepts unsolicited forwarded-tcpip channel opens without an authorization check

In wolfSSH through 1.5.0 built with --enable-fwd, DoChannelOpen in src/internal.c gates only direct-tcpip channel opens with the forwarding policy callback. forwarded-tcpip opens are admitted without an authorization check and are not capped in number, allowing a malicious SSH peer to make an...

CVE-2026-81535

In wolfSSH through 1.5.0 built with --enable-fwd, DoChannelOpen in src/internal.c gates only direct-tcpip channel opens with the forwarding policy callback. forwarded-tcpip opens are admitted without an authorization check and are not capped in number, allowing a malicious SSH peer to make an...

CVE-2026-81535 wolfSSH SSH client accepts unsolicited forwarded-tcpip channel opens without an authorization check

In wolfSSH through 1.5.0 built with --enable-fwd, DoChannelOpen in src/internal.c gates only direct-tcpip channel opens with the forwarding policy callback. forwarded-tcpip opens are admitted without an authorization check and are not capped in number, allowing a malicious SSH peer to make an...

CVE-2026-81535 wolfSSH SSH client accepts unsolicited forwarded-tcpip channel opens without an authorization check

In wolfSSH through 1.5.0 built with --enable-fwd, DoChannelOpen in src/internal.c gates only direct-tcpip channel opens with the forwarding policy callback. forwarded-tcpip opens are admitted without an authorization check and are not capped in number, allowing a malicious SSH peer to make an...

CVE-2026-81535

In wolfSSH versions prior to 1.5.1, a vulnerability exists when built with the --enable-fwd flag. The DoChannelOpen() function in src/internal.c only applies forwarding policy callbacks to direct-tcpip channel opens, allowing forwarded-tcpip opens to bypass authorization checks and remain uncappe...

EUVD-2026-94162

In wolfSSH through 1.5.0 built with --enable-fwd, DoChannelOpen in src/internal.c gates only direct-tcpip channel opens with the forwarding policy callback. forwarded-tcpip opens are admitted without an authorization check and are not capped in number, allowing a malicious SSH peer to make an...

CVE-2026-81535

In wolfSSH through 1.5.0 built with --enable-fwd, DoChannelOpen in src/internal.c gates only direct-tcpip channel opens with the forwarding policy callback. forwarded-tcpip opens are admitted without an authorization check and are not capped in number, allowing a malicious SSH peer to make an...

CVE-2026-81535: Missing Authorization

In wolfSSH through 1.5.0 built with --enable-fwd, DoChannelOpen in src/internal.c gates only direct-tcpip channel opens with the forwarding policy callback. forwarded-tcpip opens are admitted without an authorization check and are not capped in number, allowing a malicious SSH peer to make an...

PT-2026-107387

Name of the Vulnerable Software and Affected Versions wolfSSH versions prior to 1.5.1 Description When built with the --enable-fwd flag, the DoChannelOpen function in src/internal.c only applies the forwarding policy callback to direct-tcpip channel opens. Consequently, forwarded-tcpip opens are...