CVEvulnerability

CVE-2023-43644

9.8 CRITICAL Published 2023-09-25 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-09-25
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-306

Description

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.

Affected configurations

• sagernet sing-box (< 1.4.5) • sagernet sing-box 1.5.0

Related

Weakness · CWE (1)

  • CWE-306 Missing Authentication for Critical Functionality weakness

References