Remote Code Execution Vulnerability in SGLang Product by SGL Project
CVE-2026-15969

9.8CRITICAL

Key Information:

Vendor

Sglang

Status
Sglang
Vendor
CVE Published:
30 July 2026

What is CVE-2026-15969?

SGLang has a critical vulnerability that facilitates unauthenticated remote code execution through a weakness in the /load_lora_adapter_from_tensors method. This vulnerability arises from a failure in the SafeUnpickler’s denylist, enabling attackers to exploit the system by sending specially crafted base64-encoded pickle payloads. Successful exploitation can lead to arbitrary command execution, posing significant risks to security and integrity.

Affected Version(s)

SGLang 0

References

https://github.com/sgl-project/sglang/security/advisories...
https://thoughts.apoorvdayal.com/posts/sglang-disclosures/

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.