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Sglang CVE-2026-86793

| EUVDEUVD-2026-76073 CRITICAL
Code Injection (CWE-94)
2026-09-11 certcc GHSA-m675-99qc-9233
9.8
CVSS 3.1 · Vendor: certcc
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Severity by source

Vendor (certcc) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (certcc) · only source for this CVE.

CVSS VectorVendor: certcc

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Sep 15, 2026 - 10:51 vuln.today
CVSS changed
Sep 14, 2026 - 19:22 NVD
9.8 (CRITICAL)
CVE Published
Sep 11, 2026 - 11:35 cve.org
CRITICAL 9.8
CVE Published
Sep 11, 2026 - 11:35 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

SGLang allows unauthenticated pickle deserialization through /update_weights_from_tensor when no auth keys are configured, and the SafeUnpickler policy can be bypassed because builtins.import and builtins.getattr are resolvable, enabling code execution via pickle REDUCE.

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CVE-2026-86793 vulnerability details – vuln.today

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