Is this vulnerability remotely exploitable over the network?

Yes. If an attacker can reach the ZMQ broker endpoint for the multimodal generation module, they can attempt to send malicious pickle payloads without needing prior authentication.

Does exploitation require any form of authentication or prior access?

No. The described configuration does not enforce authentication on the ZMQ broker, so exploitation only requires network connectivity to the service and the ability to send crafted messages.

What is the safest general fix pattern for this issue?

The most robust approach is to eliminate pickle-based deserialization for network-facing data entirely and adopt a data-only serialization format combined with explicit schema validation. Complement this with enforcing authentication and authorization on message brokers.

Severity:

CRITICAL RISK

(9.8)

Unauthenticated Unsafe Deserialization (CWE-502) in SGLang ZMQ Multimodal Generation Broker

CVE-2026-3059

Published:

Mar 12, 2026

Status:

Modified

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Unauthenticated Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Unauthenticated Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Unauthenticated Unsafe Deserialization (CWE-502) in SGLang ZMQ Multimodal Generation Broker

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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