Threats Tagged 'cve-2026-73564'
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Threats Tagged 'cve-2026-73564'
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CVE-2026-73564: CWE-129: Improper Validation of Array Index in fatedier frpCVE-2026-73564 0 frp is a fast reverse proxy. From 0.53.0 until 0.70.1, frp's optional SSH Tunnel Gateway in pkg/ssh/server.go parses an SSH exec channel request by adding 4 to an attacker-controlled four-byte big-endian length. A length of 0xFFFFFFFF makes the uint32 addition wrap to 3, defeats the payload bounds check, and causes payload[4:3] to panic in TunnelServer.handleNewChannel. When no authorized-keys file is configured, sshConfig.NoClientAuth permits an unauthenticated peer to reach this channel phase before the frp token is checked, so a single five-byte request terminates the frps process and drops every active tunnel. This issue is fixed in version 0.70.1. Join the discussion | CVE Database V5 | 08/13/2026, 17:35:46 UTC Added: 08/13/2026, 17:57:34 UTC |
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