CVE-2026-112267
SGLang through 0.5.22 SSRF via bootstrap_host and bootstrap_port on Decode Worker
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-918 |
| Vendor | sgl-project |
| Product | sglang |
| Published | Oct 19, 2026 |
| Last Updated | Oct 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
Affected Versions
sgl-project / sglang
0 ≤ 0.5.22
References
github.com: https://github.com/sgl-project/sglang/issues/45008 github.com: https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/common/conn.py#L1157-L1181 github.com: https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/decode.py#L1150-L1175 vulncheck.com: https://www.vulncheck.com/advisories/sglang-through-0.5.22-ssrf-via-bootstrap-host-and-bootstrap-port-on-decode-worker
Credits
Mingkai Yu Qiang Fu Jiadai Wang Jiajia Liu