Medium severity · published Oct 19, 2026
CVE-2026-112268
sglang-router through 0.3.2 Authorization Bypass via Mesh HA Management Routes
6.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SG
sglang-router · sgl-project
through 0.3.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-112268
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-112268
github.com
https://github.com/sgl-project/sglang/blob/v0.5.22/sgl-model-gateway/src/server.rs#L641-L675
github.com
https://github.com/sgl-project/sglang/issues/45006
github.com
https://github.com/sgl-project/sglang/pull/45017
www.vulncheck.com
https://www.vulncheck.com/advisories/sglang-router-through-0.3.2-authorization-bypass-via-mesh-ha-management-routes