CVE-2026-76717: Analytics and Location Engine API Flaw

CVE-2026-76717 Overview

CVE-2026-76717 is an information disclosure vulnerability in the Analytics and Location Engine (ALE) API. An unauthenticated remote attacker can exploit the flaw by sending specially crafted input to a specific API endpoint. Successful exploitation returns sensitive user information, including password hashes, which attackers can use to facilitate follow-on attacks such as offline password cracking and credential-based intrusion.

The vulnerability is tracked under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor. HPE published a security bulletin documenting affected versions and remediation guidance.

Critical Impact
An unauthenticated network attacker can retrieve password hashes from the ALE API, enabling credential compromise and lateral movement.

Affected Products

HPE Aruba Networking Analytics and Location Engine (ALE)
See the HPE Security Bulletin for the full list of impacted versions

Discovery Timeline

2026-09-22 - CVE-2026-76717 published to NVD
2026-09-23 - Last updated in NVD database

Technical Details for CVE-2026-76717

Vulnerability Analysis

The vulnerability resides in an API endpoint exposed by the Analytics and Location Engine (ALE). ALE aggregates location and analytics telemetry from Aruba wireless infrastructure and exposes results through REST APIs. The affected endpoint fails to enforce authentication and returns internal user records when it receives crafted input.

Among the returned data are password hashes for local user accounts. An attacker with network reachability to the ALE management interface can retrieve these hashes without credentials. Recovered plaintext credentials can then be reused against the ALE console or reused across adjacent management systems.

Root Cause

The root cause is missing authorization on an API route combined with over-permissive response serialization. The endpoint returns fields that should be restricted to administrative contexts, including hashed credential material. This matches the [CWE-200] pattern of exposing sensitive information to unauthorized actors.

Attack Vector

Exploitation occurs over the network and requires no authentication or user interaction. An attacker submits a crafted HTTP request to the vulnerable ALE API endpoint. The server processes the request and returns a response containing sensitive user attributes. Exploitation code is not publicly available at the time of publication, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.

Refer to the HPE Security Bulletin for endpoint-specific technical details.

Detection Methods for CVE-2026-76717

Indicators of Compromise

Unauthenticated HTTP requests to ALE API endpoints originating from unexpected source addresses
API responses containing user records or hash-shaped strings returned to non-administrative clients
Unusual outbound authentication attempts using ALE local account names following API access

Detection Strategies

Inspect ALE web server and reverse-proxy logs for requests to user-management API paths without a valid session token
Alert on HTTP responses from the ALE API that exceed baseline size for unauthenticated endpoints
Correlate ALE API access from external or non-management network segments with subsequent authentication failures on connected systems

Monitoring Recommendations

Forward ALE application and access logs to a centralized SIEM for retention and correlation
Baseline expected API consumers and alert on new client IPs interacting with ALE endpoints
Monitor for password reset activity or hash reuse indicators on accounts shared between ALE and other services

How to Mitigate CVE-2026-76717

Immediate Actions Required

Apply the fixed ALE release identified in the HPE Security Bulletin as soon as it is validated in a test environment
Rotate all local ALE account credentials and any credentials reused across other systems
Restrict network access to the ALE management interface to trusted administrative subnets only

Patch Information

HPE has published remediation guidance in security bulletin hpesbnw05137en_us. Administrators should consult the HPE Security Bulletin to identify fixed versions applicable to their ALE deployment and follow the vendor upgrade procedure.

Workarounds

Place the ALE management interface behind a firewall or VPN accessible only to authorized administrators
Disable or block external access to the vulnerable API endpoint at an upstream reverse proxy until patched
Enforce network segmentation between ALE and general user or guest networks

bash

# Example: restrict ALE management access to a trusted admin subnet
# Adjust interface, subnet, and port to match your deployment
iptables -A INPUT -p tcp --dport 443 -s 10.10.20.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP