CVE-2026-112268
sglang-router through 0.3.2 Authorization Bypass via Mesh HA Management Routes
sgl-project sglang-routerNetwork & edge
CVSS
5.3MediumExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 22 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.26%Chance of exploitation activity in the next 30 days, higher than 17% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
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.
Text from CVE List
Affected versions 1
- sglang-routeraffected: all versions through 0.3.2CVE List
References 4
- github.com/sgl-project/sglang/pull/45017Fixvia CVE List
- vulncheck.com/advisories/sglang-router-through-0.3.2-authorization-bypass-via-mesh-ha-management-routesAdvisoryvia CVE List
- github.com/sgl-project/sglang/issues/45006Exploitvia CVE List
- github.com/sgl-project/sglang/blob/v0.5.22/sgl-model-gateway/src/server.rs#L641-L675Referencevia CVE List