Sing-box is an open source proxy system. Affected versions are subject to an authentication bypass when specially crafted requests are sent to sing-box. This affects all SOCKS5 inbounds with user authentication and an attacker may be able to bypass authentication. Users are advised to update to sing-box 1.4.4 or to 1.5.0-rc.4. Users unable to update should not expose the SOCKS5 inbound to insecure environments.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| github.com/sagernet/sing-box(Go) | 0 | 1.4.5 | N/A |
| github.com/sagernet/sing-box(Go) | 1.5.0-beta.1 | 1.5.0-rc.5 | N/A |
| github.com/sagernet/sing(Go) | 0 | 0.2.12-0.20230925092853-5b05b5c147d9 | N/A |
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