CVE-2026-6981: AiraHub2 SSRF Vulnerability

CVE-2026-6981 Overview

A Server-Side Request Forgery (SSRF) vulnerability has been identified in IhateCreatingUserNames2 AiraHub2, affecting versions up to commit 3e4b77fd7d48ed811ffe5b8d222068c17c76495e. The vulnerability exists in the connect_stream_endpoint and sync_agents functions within the AiraHub.py file, which is part of the Endpoint component. An attacker can manipulate requests to force the server to make unintended requests to internal or external resources.

Critical Impact
Remote attackers with low privileges can exploit this SSRF vulnerability to access internal network resources, potentially leading to data exfiltration, internal service enumeration, or further attacks against backend systems.

Affected Products

IhateCreatingUserNames2 AiraHub2 (up to commit 3e4b77fd7d48ed811ffe5b8d222068c17c76495e)
Multiple endpoints within the Endpoint component are affected

Discovery Timeline

2026-04-25 - CVE-2026-6981 published to NVD
2026-04-29 - Last updated in NVD database

Technical Details for CVE-2026-6981

Vulnerability Analysis

This vulnerability is classified as CWE-918 (Server-Side Request Forgery). The affected functions connect_stream_endpoint and sync_agents in AiraHub.py fail to properly validate user-supplied URLs or endpoint parameters before making server-side HTTP requests. This allows an authenticated attacker with low privileges to manipulate the target destination of these requests.

SSRF vulnerabilities are particularly dangerous because they allow attackers to leverage the trusted network position of the vulnerable server. The server essentially becomes a proxy for the attacker, enabling access to internal resources that would otherwise be unreachable from external networks. In this case, the vulnerability affects multiple endpoints within the component, expanding the attack surface.

The product uses a rolling release model for continuous updates, which means specific version numbers are not available. Organizations should track the affected commit hash 3e4b77fd7d48ed811ffe5b8d222068c17c76495e when assessing their exposure.

Root Cause

The root cause of this vulnerability is improper input validation in the Endpoint component. The connect_stream_endpoint and sync_agents functions accept user-controlled input that influences server-side HTTP requests without adequate sanitization or allowlist validation. This allows attackers to redirect requests to arbitrary internal or external destinations.

Attack Vector

The attack can be initiated remotely over the network by an authenticated user with low privileges. No user interaction is required for exploitation. The attacker manipulates parameters passed to the vulnerable endpoint functions to specify malicious target URLs, causing the server to make requests on the attacker's behalf. The exploit has been made public, increasing the risk of active exploitation.

Exploitation of this SSRF vulnerability could enable attackers to:

Access internal services and APIs not exposed to the internet
Retrieve sensitive data from internal systems
Perform port scanning on internal networks
Bypass firewall restrictions and access controls
Potentially chain with other vulnerabilities for more severe impact

For technical details regarding the exploitation method, refer to the GitHub Issue Tracker Entry and VulDB Vulnerability #359524.

Detection Methods for CVE-2026-6981

Indicators of Compromise

Unexpected outbound HTTP/HTTPS requests from the AiraHub2 server to internal IP addresses or metadata endpoints
Requests to the connect_stream_endpoint or sync_agents endpoints containing suspicious URL parameters pointing to internal resources
Log entries showing connections to localhost, internal IP ranges (10.x.x.x, 172.16.x.x, 192.168.x.x), or cloud metadata services (169.254.169.254)
Anomalous traffic patterns from the server to previously uncontacted internal hosts

Detection Strategies

Implement network monitoring to detect unusual server-initiated requests to internal or restricted endpoints
Deploy application-layer logging for the AiraHub.py endpoint functions to capture and analyze URL parameters
Configure web application firewall (WAF) rules to detect SSRF attack patterns in request parameters
Monitor for requests containing internal IP addresses, localhost references, or cloud metadata URLs in user-controlled fields

Monitoring Recommendations

Enable verbose logging for the AiraHub2 Endpoint component to capture all incoming requests and their parameters
Set up alerts for outbound connections from the application server to internal network ranges
Implement egress filtering and monitoring to detect unauthorized external communications
Review application logs regularly for attempts to access internal resources via the vulnerable endpoints

How to Mitigate CVE-2026-6981

Immediate Actions Required

Review and update the AiraHub2 installation to the latest commit beyond 3e4b77fd7d48ed811ffe5b8d222068c17c76495e
Implement strict URL validation and allowlisting for the connect_stream_endpoint and sync_agents functions
Restrict network access from the AiraHub2 server to limit potential SSRF impact
Audit logs for any evidence of exploitation attempts

Patch Information

The vendor was contacted early about this disclosure but did not respond. Organizations using AiraHub2 should monitor the GitHub repository for updates and patches. Since the product uses a rolling release model, users should pull the latest commits and verify the vulnerable functions have been remediated. Additional technical information is available via VulDB Vulnerability #359524.

Workarounds

Implement a reverse proxy or WAF in front of the application to filter malicious URL parameters
Configure network segmentation to limit the server's ability to reach internal resources
Deploy egress filtering to restrict outbound connections from the application server
Disable or restrict access to the affected endpoints (connect_stream_endpoint and sync_agents) until a patch is available
Implement application-level URL validation that only permits connections to explicitly allowed destinations