CVE-2026-112268CWE-863broken-access-control

CVE-2026-112268

Medium · published October 19, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
17.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
EPSS
0.00264 · 17.4th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-10-19T18:17Z
References (5)
https://github.com/sgl-project/sglang/blob/v0.5.22/sgl-model-gateway/src/server.rs#L641-L675 · [email protected]https://github.com/sgl-project/sglang/issues/45006 · [email protected]https://github.com/sgl-project/sglang/pull/45017 · [email protected]https://www.vulncheck.com/advisories/sglang-router-through-0.3.2-authorization-bypass-via-mesh-ha-management-routes · [email protected]https://github.com/sgl-project/sglang/issues/45006 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 21 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 19 OCT 13:55Z
    sglang-router through 0.3.2 Authorization Bypass via Mesh HA Management Routes
    cvelistv5
  • 19 OCT 13:55Z
    sglang-router through 0.3.2 Authorization Bypass via Mesh HA Management Routes
    cvelistv5