CVE-2026-15969: Critical severity SGLang vulnerability

Published Jul 30, 2026
·
Updated

SGLang contains an unauthenticated RCE in /loadloraadapterfromtensors via bypass of SafeUnpickler’s incomplete denylist, allowing arbitrary command execution through crafted base64-encoded pickle payloads.

Affected Software

2 affected components
SGLang
Lmsys Sglang<=0.5.15

Event History

Jul 30, 2026
CVE Published
via MITRE·06:09 PM
Data Sourced
via MITRE·06:09 PM
DescriptionWeakness
Data Sourced
via NVD·07:17 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-15969?

CVE-2026-15969 has a risk rating of 95, indicating a critical severity due to its ability to allow remote code execution.

2

How do I fix CVE-2026-15969?

To mitigate CVE-2026-15969, update SGLang to the latest version where the vulnerability is patched.

3

What is CVE-2026-15969?

CVE-2026-15969 describes a vulnerability in SGLang that allows unauthenticated remote code execution through a bypass of the SafeUnpickler denylist.

4

Which component of SGLang is affected by CVE-2026-15969?

CVE-2026-15969 specifically affects the /load_lora_adapter_from_tensors function in SGLang.

5

Can CVE-2026-15969 be exploited remotely?

Yes, CVE-2026-15969 can be exploited remotely through crafted base64-encoded pickle payloads.

Contact

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