CVE-2026-112268

medium

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…

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

6.3 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)

Timeline (UTC)

Published: 2026-10-19 14:17

Modified: 2026-10-22 03:16

NVD status: Deferred

Last synced 1 day ago

Verified against the source API 2026-10-27 07:03 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

CWE-863

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://github.com/sgl-project/sglang/blob/v0.5.22/sgl-model-gateway/src/server.rs#L641-L6... disclosure@vulncheck.com
https://github.com/sgl-project/sglang/issues/45006 disclosure@vulncheck.com
https://github.com/sgl-project/sglang/pull/45017 disclosure@vulncheck.com
https://www.vulncheck.com/advisories/sglang-router-through-0.3.2-authorization-bypass-via-... disclosure@vulncheck.com
https://github.com/sgl-project/sglang/issues/45006 134c704f-9b21-4f2e-91b3-4a467353bcc0

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 07:03 UTC · record ↗

Learn the basics

Understanding CVEs and CVSS Scores