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Advisories

sglang-router through 0.3.2 Authorization Bypass via Mesh HA Management Routes

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Severity
medium
Date
Affecting

  • sglang-router <= 0.3.2

CWE
  • CWE-863 Incorrect Authorization
CVSS
5.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Credit
Mingkai Yu, Qiang Fu, Jiadai Wang, Jiajia Liu
Description
sglang-router (sgl-model-gateway) through 0.3.2 contains an authorization bypass vulnerability that allows holders of the data-plane API key to access mesh HA management routes because /ha/* endpoints skip control-plane Admin role checks. Attackers can read cluster topology, write gossiped configuration, change global rate limits, and call POST /ha/shutdown to silently dissolve HA coordination.

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