CVE-2026-14890: Lmsys Sglang

Critical severity, CVSS 9.1. EPSS: 1% chance of exploitation in the next 30 days.

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.

Affected products

• Lmsys Sglang: up to and including 0.5.14

Published 2026-07-16. Last modified 2026-08-10.