Threats Tagged 'cve-2026-81535'
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Threats Tagged 'cve-2026-81535'
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CVE-2026-81535 is a missing authorization vulnerability in wolfSSH versions 1.4.8 up to but not including 1.6.0. The issue occurs when wolfSSH is built with the --enable-fwd option. The function DoChannelOpen() only enforces authorization checks on direct-tcpip channel opens, but forwarded-tcpip channel opens bypass these checks and are not limited in number. This allows a malicious SSH peer to cause unbounded memory allocation on the endpoint. Additionally, the client does not verify forwarded-tcpip opens against registered tcpip-forward requests as required by RFC 4254 section 7.2, enabling a malicious server to open forwarding channels for unauthorized addresses and ports. Join the discussion | CVE Database V5 | 10/07/2026, 02:39:27 UTC Added: 10/07/2026, 02:49:05 UTC |
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