Is this vulnerability remotely exploitable over the internet?

Yes, if an attacker can remotely influence or set the Urbit base URL (for example via a web UI, API, or misconfigured configuration endpoint), they can exploit SSRF from outside the network. If URL control is restricted to trusted admins, the practical exposure is reduced.

What level of access does an attacker need to exploit this?

The attacker must be able to control or significantly influence the configured Urbit URL. This might require authenticated access, multi-tenant misconfiguration, or abuse of an integration endpoint depending on how OpenClaw is deployed.

What is the safest general fix pattern?

Replace direct use of user-supplied URLs with a strict allowlist-based design, where the server only connects to predefined domains or IDs mapped to trusted endpoints. Complement this with rigorous URL parsing, IP range blocking, and network egress restrictions.

Severity:

HIGH RISK

(8.3)

Server-Side Request Forgery (CWE-918) in OpenClaw Tlon Urbit Extension

CVE-2026-28476

Published:

Mar 5, 2026

Status:

Received

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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CRITICAL RISK

CRITICAL

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SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Remote Code Execution via SQL Injection on the Database Server

March 7, 2026

Vulnerability Type

Category:

Server-Side Request Forgery (SSRF)

CWE:

CWE-918

Impact:

Internal Network Access and Potential Data Exposure via SSRF

Severity:

HIGH RISK

(8.3)

CVSS Version:

3.1

Vulnerability Type

Category:

Server-Side Request Forgery (SSRF)

CWE:

CWE-918

Impact:

Internal Network Access and Potential Data Exposure via SSRF

Severity:

HIGH RISK

(8.3)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Server-Side Request Forgery (CWE-918) in OpenClaw Tlon Urbit Extension

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

CRITICAL RISK

CRITICAL

(9.9)

Command Injection in MCP Stdio Configuration Validation (CWE-78) in WeKnora

CRITICAL RISK

CRITICAL

(9.9)

SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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