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Vulnerability record · CVE-2026-93088 · published 22 September 2026

CVE-2026-93088: Deserialization of untrusted data vulnerability

SGLang's multimodal generation runtime is vulnerable to unauthenticated arbitrary code execution because the disaggregated-diffusion orchestrator's DiffusionServer binds an unauthenticated ZeroMQ ROUTER socket to a network interface and passes the final frame of received multipart messages directly to pickle.loads() before any validation occurs.

9.8 CVSS 3.1 Critical EPSS 0.73% · top 47.8% CWE-502 · Deserialization of untrusted data Awaiting Analysis
9.8CVSS 3.1 base score
0.73%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
22 Sep 2026Last modified by NVD

Description

SGLang's multimodal generation runtime is vulnerable to unauthenticated arbitrary code execution because the disaggregated-diffusion orchestrator's DiffusionServer binds an unauthenticated ZeroMQ ROUTER socket to a network interface and passes the final frame of received multipart messages directly to pickle.loads() before any validation occurs.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://github.com/sgl-project/sglang/blob/main/python/sglang/multimodal_gen/runtime/disaggregation/orchestrator.py
https://hacchoomiso.github.io/blog/SGLang/CVE-2026-93088/
https://hacchoomiso.github.io/blog/SGLang/CVE-2026-93088/

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Source: NIST National Vulnerability Database (record CVE-2026-93088), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.