Medium 6.3Published Oct 19, 2026

CVE-2026-112268sglang-router through 0.3.2 Authorization Bypass via Mesh HA Management Routes

Updated under an hour ago (Oct 27, 2026, 7:20 PM ET)

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Every CVE for sgl-project sglang-router

Exploited in the last 30 days

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: 6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Weakness (CWE): CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 19, 2026

Affected products

Affected products

sgl-project sglang-router sgl_project:sglang_router (from the name)	through 0.3.2	CNA record

References

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
https://www.vulncheck.com/advisories/sglang-router-through-0.3.2-authorization-bypass-via-mesh-ha-management-routes	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.