CVE-2026-112267

Published: Oct 19, 2026Modified: Oct 19, 2026Deferred

6.9

Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

Description

SGLang through 0.5.22 in prefill/decode disaggregation mode contains a server-side request forgery vulnerability that allows unauthenticated attackers to trigger outbound requests via client-supplied bootstrap_host and bootstrap_port fields. Attackers sending crafted requests to the Decode worker's /generate endpoint can probe internal hosts and ports and block the shared scheduler loop, delaying other inference requests.

Related CWEs

CWE-918

Server-Side Request Forgery (SSRF)

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

References (5)

https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/common/conn.py#L1157-L1181

Source: disclosure@vulncheck.com

https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/decode.py#L1150-L1175

Source: disclosure@vulncheck.com

https://github.com/sgl-project/sglang/issues/45008

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/sglang-through-0.5.22-ssrf-via-bootstrap-host-and-bootstrap-port-on-decode-worker

Source: disclosure@vulncheck.com

https://github.com/sgl-project/sglang/issues/45008

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.