CVE-2026-14890

SGLang uses an expert-parallel backup subsystem that exposes a ZeroMQ PULL socket on a routable network interface that does not contain authentication or deserialization safeguards, allowing an attacker to provide a malicious pickle file that results in unauthenticated remote code execution when the feature is enabled and the service is reachable over the network.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
http://vince.cert.org/vuls/id/326070	Permissions Required
https://github.com/sgl-project/sglang/blob/main/python/sglang/srt/elastic_ep/expert_backup_manager.py	Product
https://www.kb.cert.org/vuls/id/326070	Mitigation Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:lmsys:sglang:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-07-16 16:19

Updated : 2026-08-10 14:13

NVD link : CVE-2026-14890

Mitre link : CVE-2026-14890

CVE.ORG link : CVE-2026-14890

JSON object : View

Products Affected

lmsys

sglang

CWE

CWE-502

Deserialization of Untrusted Data

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