CVE-2026-112268

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.

CVSS v3 6.3 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/sgl-project/sglang/blob/v0.5.22/sgl-model-gateway/src/server.rs#L641-L675
https://github.com/sgl-project/sglang/issues/45006
https://github.com/sgl-project/sglang/pull/45017
https://www.vulncheck.com/advisories/sglang-router-through-0.3.2-authorization-bypass-via-mesh-ha-management-routes
https://github.com/sgl-project/sglang/issues/45006

Configurations

No configuration.

History

22 Oct 2026, 03:16

Type	Values Removed	Values Added
References	~~() https://github.com/sgl-project/sglang/issues/45006 -~~	() https://github.com/sgl-project/sglang/issues/45006 -

19 Oct 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-19 14:17

Updated : 2026-10-22 03:16

NVD link : CVE-2026-112268

Mitre link : CVE-2026-112268

CVE.ORG link : CVE-2026-112268

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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