VDB
CVE-2026-86793
CVE-2026-86793
PUBLISHED
CVSS 9.8 CRITICAL
Reported by certcc · Published September 11, 2026
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.
Risk Scores
CVSS 3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| SGLang | SGLang | 0 |
| SGLang | SGLang | 0, 0 |
Timeline
- Sep 11, 2026 Coalition ESS Score
- Sep 11, 2026 CVE Published
- Sep 12, 2026 EPSS Score
- Sep 14, 2026 CVE Updated
- Sep 15, 2026 EPSS Score
- Sep 16, 2026 EPSS Score
- Sep 18, 2026 EPSS Score
- Sep 24, 2026 EPSS Score
- Sep 26, 2026 EPSS Score
- Sep 30, 2026 EPSS Score
- Oct 2, 2026 EPSS Score
- Oct 6, 2026 EPSS Score