1. Home
  2. CVE Database
  3. CVE-2026-15976
CRITICAL · 9.8

CVE-2026-15976

SGLang contains a RCE vulnerability when attempting to load model weights from a HuggingFace repository, specifically within the /update_weights_from_disk, where torch.load(..., weights_only=False) fa...

Vulnerability Description

SGLang contains a RCE vulnerability when attempting to load model weights from a HuggingFace repository, specifically within the /update_weights_from_disk, where torch.load(..., weights_only=False) fallback enables pickle deserialization of .bin files.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
LmsysSglang<= 0.5.15

Related Weaknesses (CWE)

CWE-502

References

FAQ

What is CVE-2026-15976?

CVE-2026-15976 is a vulnerability with a CVSS score of 9.8 (CRITICAL). SGLang contains a RCE vulnerability when attempting to load model weights from a HuggingFace repository, specifically within the /update_weights_from_disk, where torch.load(..., weights_only=False) fa...

How severe is CVE-2026-15976?

CVE-2026-15976 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-15976?

Check the references section above for vendor advisories and patch information. Affected products include: Lmsys Sglang.