CVE-2026-15971

CRITICAL CVSS 3.1: 9.8 EPSS 0.73%
Updated Aug 04, 2026
Lmsys
Parameter Value
CVSS 9.8 (CRITICAL)
Affected Versions before 0.5.15
Type CWE-95, CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
Vendor Lmsys
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Lmsys Sglang
cpe:2.3:a:lmsys:sglang:*:*:*:*:*:*:*:*
— <= 0.5.15