SSRF in Sgl-Project Sglang
CVE-2026-112267
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/sgl-project/sglang/issues/45008 (issue-tracking)
- github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/com… (technical-description)
- github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/dec… (technical-description)
- www.vulncheck.com/advisories/sglang-through-0.5.22-ssrf-via-bootstrap-host-and-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-112267?
- CVE-2026-112267 is a medium-severity vulnerability in Sgl-Project Sglang, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2026-10-19.
- How severe is CVE-2026-112267?
- Medium severity. CVSS v3 base score is 6.5 out of 10.