SGLang contains an arbitrary code execution vulnerability caused by the ZMQ message decoder unconditionally deserializing PickleWrapper payloads via pickle.loads() in _maybe_unwrap_pickle without type allowlisting or authentication; this vulnerability persists via the msgpack path even when SGLANG_USE_PICKLE_IPC is disabled, and becomes remotely exploitable if data-parallel attention is enabled with a non-loopback --dist-init-addr setting.

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Fixes

Solution

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Workaround

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History

Thu, 08 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-502

Thu, 08 Oct 2026 14:15:00 +0000

Type Values Removed Values Added
Description SGLang contains an arbitrary code execution vulnerability caused by the ZMQ message decoder unconditionally deserializing PickleWrapper payloads via pickle.loads() in _maybe_unwrap_pickle without type allowlisting or authentication; this vulnerability persists via the msgpack path even when SGLANG_USE_PICKLE_IPC is disabled, and becomes remotely exploitable if data-parallel attention is enabled with a non-loopback --dist-init-addr setting.
Title CVE-2026-93034
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published:

Updated: 2026-10-08T14:00:09.084Z

Reserved: 2026-09-17T15:20:20.432Z

Link: CVE-2026-93034

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-08T15:17:57.117

Modified: 2026-10-08T15:17:57.220

Link: CVE-2026-93034

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-08T16:30:05Z

Weaknesses

No weakness.