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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| SGLang | SGLang | affected |
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Project Subscriptions
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Advisories
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Fixes
Solution
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Workaround
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References
History
Fri, 11 Sep 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | CVE-2026-86793 | |
| References |
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Projects
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MITRE
Status: PUBLISHED
Assigner: certcc
Published:
Updated: 2026-09-11T11:35:20.812Z
Reserved: 2026-09-08T11:56:03.107Z
Link: CVE-2026-86793
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses
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