CVE-2026-112267CWE-918ssrf

CVE-2026-112267

Medium · published October 19, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
35.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CVSS v4.0
6.9 · 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
EPSS
0.00423 · 35.5th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-10-19T18:17Z
References (5)
https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/common/conn.py#L1157-L1181 · [email protected]https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/decode.py#L1150-L1175 · [email protected]https://github.com/sgl-project/sglang/issues/45008 · [email protected]https://www.vulncheck.com/advisories/sglang-through-0.5.22-ssrf-via-bootstrap-host-and-bootstrap-port-on-decode-worker · [email protected]https://github.com/sgl-project/sglang/issues/45008 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 21 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 19 OCT 13:55Z
    SGLang through 0.5.22 SSRF via bootstrap_host and bootstrap_port on Decode Worker
    cvelistv5
  • 19 OCT 13:55Z
    SGLang through 0.5.22 SSRF via bootstrap_host and bootstrap_port on Decode Worker
    cvelistv5