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CVE-2026-93034 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: CISA-ADPCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/sgl-project/sglang/tree/main	[email protected]	Source CodeVendor
https://m00dy.sh/notes/disabling-pickle-did-not-remove-pickle?palette=mineral	[email protected]	ExploitTechnical Analysis

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-502	Deserialization of Untrusted Data	CISA-ADP

Affected Products

Product	Versions
SGLang	0.5.18 (semver) 0.5.20 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: 0.5.21moderate effort Workaround:low effort Disable data-parallel attention and configure the distribution address to loopback.

Change History

2 change records found show changes

Date	Action	Recorded By
Oct 8, 2026	CVE Modified	CISA-ADP
Oct 8, 2026	New CVE Received	[email protected]