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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| sgl-project | sglang-router | ≤ 0.3.2 | — |
References
- https://github.com/sgl-project/sglang/issues/45006 issue-tracking
- https://github.com/sgl-project/sglang/pull/45017 patch issue-tracking
- https://github.com/sgl-project/sglang/blob/v0.5.22/sgl-model-gateway/src/server.rs#L641-L675 technical-description
- VulnCheck Advisory: sglang-router through 0.3.2 Authorization Bypass via Mesh HA Management Routes third-party-advisory