Vulnerability · Published Oct 19, 2026 · Assigned by VulnCheck

CVE-2026-112267SGLang through 0.5.22 SSRF via bootstrap_host and bootstrap_port on Decode Worker

Medium 6.5

In plain English

A medium-severity server-side request forgery in sglang from sgl-project. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.4%top 63.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
sgl-project	sglang	0 – through 0.5.22

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

References

https://github.com/sgl-project/sglang/issues/45008 issue-tracking
https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/common/conn.py#L1157-L1181 technical-description
https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/decode.py#L1150-L1175 technical-description
VulnCheck Advisory: SGLang through 0.5.22 SSRF via bootstrap_host and bootstrap_port on Decode Worker third-party-advisory