Medium severity6.3NVD Advisory· Published Oct 19, 2026

CVE-2026-112268

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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Affected products

Sgl Project/Sglangllm-fuzzy
Range: <=0.3.2

Patches

Vulnerability mechanics

References

github.com/sgl-project/sglang/blob/v0.5.22/sgl-model-gateway/src/server.rsnvd
github.com/sgl-project/sglang/issues/45006nvd
github.com/sgl-project/sglang/pull/45017nvd
www.vulncheck.com/advisories/sglang-router-through-0.3.2-authorization-bypass-via-mesh-ha-management-routesnvd

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cvss	0.410
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000