CVE-2026-43993: JunoClaw AI Platform SSRF Vulnerability
The National Vulnerability Database has published details on CVE-2026-43993, a high-severity Server-Side Request Forgery (SSRF) vulnerability affecting the JunoClaw agentic AI platform. Prior to version 0.x.y-security-1, the WAVS bridge’s computeDataVerify function mishandled agent-supplied URLs. It would call fetch() without proper validation of the scheme, port, or resolved IP address.
This critical flaw, with a CVSS score of 8.2 (HIGH), allows an attacker to manipulate the fetch() call to make requests to internal network resources. The attacker’s calculus here is straightforward: leverage the AI platform as a proxy to probe internal networks, access sensitive services, or exfiltrate data that should otherwise be inaccessible from the internet. The UI:R (User Interaction: Required) vector component is misleading here; while it suggests user interaction, in an agentic AI context, the ‘agent’ itself can be the ‘user’ if compromised or manipulated.
For organizations deploying or integrating with JunoClaw, this is a glaring blind spot. An SSRF vulnerability in an AI platform, especially one that can ‘fetch’ data, means the platform itself becomes a weapon. Defenders must assume that if an attacker can feed a malicious URL to the agent, they can pivot directly into your internal infrastructure. Patching is non-negotiable, and a full audit of network access controls for AI services is imperative.
What This Means For You
- If your organization uses JunoClaw, immediately patch to version 0.x.y-security-1 or newer to mitigate CVE-2026-43993. Furthermore, audit all network access policies for your AI platforms and services, ensuring they operate with the strictest least-privilege principles and cannot initiate arbitrary connections to internal resources.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-43993: JunoClaw WAVS Bridge SSRF Attempt
title: CVE-2026-43993: JunoClaw WAVS Bridge SSRF Attempt
id: scw-2026-05-12-ai-1
status: experimental
level: high
description: |
Detects attempts to exploit CVE-2026-43993 by targeting the '/wavs/computeDataVerify' endpoint with a 'url=' parameter, indicating a potential SSRF attack against the JunoClaw WAVS bridge.
author: SCW Feed Engine (AI-generated)
date: 2026-05-12
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-43993/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '/wavs/computeDataVerify'
cs-uri-query|contains:
- 'url='
selection_base:
cs-method:
- 'POST'
condition: selection AND selection_base
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-43993 | SSRF | JunoClaw WAVS bridge |
| CVE-2026-43993 | SSRF | JunoClaw versions prior to 0.x.y-security-1 |
| CVE-2026-43993 | SSRF | Vulnerable function: computeDataVerify calling fetch() on agent-supplied URLs |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 12, 2026 at 20:16 UTC |
This content was AI-rewritten and enriched by Shimi's Cyber World based on the original source. All intellectual property rights remain with the original author.
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