CVE-2026-15971: Lmsys Sglang

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

SGLang contains an RCE vulnerability when the optional dumper subsystem is enabled, allowing for a sandbox escape when DUMPER_SERVER_PORT is set, enabling code execution on inference requests.

Affected products

• Lmsys Sglang: up to and including 0.5.15

Published 2026-07-30. Last modified 2026-08-04.