CVE-2026-110809: SGLang 0.5.0, 0.5.1, 0.5.2, 0.5.3, 0.5.4, 0.5.5, 0.5.6, 0.5.7, 0.5.8, 0.5.9, 0.5.10, 0.5.11, 0.5.12, 0.5.13, 0.5.14…

Affected technology

SGLang · 0.5.0, 0.5.1, 0.5.2, 0.5.3, 0.5.4, 0.5.5, 0.5.6, 0.5.7, 0.5.8, 0.5.9, 0.5.10, 0.5.11, 0.5.12, 0.5.13, 0.5.14, 0.5.15, 0.5.16, 0.5.17, 0.5.18, 0.5.19
sgl-project

Description’s affected range: up to 0.5.19

Component: Session Cleanup
Function: Session.create_req
File: python/sglang/srt/session/session_controller.py

Attack conditions (VulDB, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

The source reports that an attacker could disrupt service. VulDB’s CVSS 4.0 assessment (base score 2.1/10) rates confidentiality and integrity impact as none; availability impact as low.