CVE-2026-15969
Critical
Description
SGLang contains an unauthenticated RCE in /load_lora_adapter_from_tensors via bypass of SafeUnpickler’s incomplete denylist, allowing arbitrary command execution through crafted base64-encoded pickle payloads.
SeverityCritical
CVSS9.8
Exploit probability—
ProductLmsys Sglang
PublishedJul 30, 2026
First seenJul 30, 2026
Weakness typeCWE-502Deserialization of untrusted data
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| lmsys sglang | v ≤ 0.5.15 | — |
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