CVE-2026-82477
Received Received - Intake

SSRF Vulnerability in MITRE SAF Heimdall via Tenable Proxy Endpoint

Publication date: 2026-08-29

Last updated on: 2026-08-29

Assigner: MITRE

Description
In MITRE SAF Heimdall 2.11.6 through 2.13.x before 2.14.0, an SSRF issue allows remote attackers to access internal network resources via the Tenable proxy endpoint. This occurs in apps/backend/src/tenable/tenable.controller.ts.

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Meta Information

Published
2026-08-29
Last Modified
2026-08-29
Generated
2026-08-29
AI Q&A
2026-08-29
EPSS Evaluated
N/A
NVD
CVE-2026-82477
EUVD
EUVD-2026-68115

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
mitre heimdall From 2.11.6 (inc) to 2.14.0 (exc)
mitre heimdall From 2.13.0 (inc) to 2.14.0 (exc)
mitre heimdall 2.14.0

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-918 The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

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Executive Summary

This is a Server-Side Request Forgery (SSRF) vulnerability in MITRE SAF Heimdall versions 2.11.6 through 2.13.x before 2.14.0. It allows remote attackers to access internal network resources by exploiting the Tenable proxy endpoint in the application.

Detection Guidance

To detect this SSRF vulnerability in Heimdall 2.11.6 through 2.13.x, monitor network traffic for unauthorized internal requests originating from the Tenable proxy endpoint. Check logs for attempts to access internal hosts via the host_url parameter. Verify if host URLs lack proper protocol validation or contain allowlisted domains.

Impact Analysis

An attacker could use this flaw to access internal systems or sensitive data within your network by sending crafted requests through the vulnerable Tenable proxy endpoint. This could lead to unauthorized information disclosure or network reconnaissance.

Compliance Impact

This SSRF vulnerability could lead to unauthorized access to sensitive data, potentially violating GDPR's data protection requirements or HIPAA's safeguards for protected health information. Compliance may be impacted if unauthorized access occurs.

Mitigation Strategies

Upgrade Heimdall to version 2.14.0 or later to address the SSRF vulnerability in the Tenable integration. Ensure Tenable host URLs are validated against an allowlist and require explicit authentication. Check environment variables for Tenable host URLs to confirm they use the consolidated single variable format.

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