CVE-2026-15470: Eleveo Call Recording Auth Bypass Flaw

CVE-2026-15470 Overview

CVE-2026-15470 is an improper authorization vulnerability in Eleveo Call Recording Software version 9.7.0. The flaw resides in unspecified functionality of the /callrec/group.jsp endpoint. Manipulation of this endpoint allows an authenticated remote attacker to bypass authorization controls and access resources beyond their assigned privilege level. The weakness is classified under CWE-266: Incorrect Privilege Assignment. The exploit details have been publicly disclosed. The vendor was contacted before public disclosure but did not respond, leaving deployments without an official remediation path at publication time.

Critical Impact
Authenticated users can access group management functionality outside their authorized scope, exposing call recording data and configuration to horizontal or vertical privilege escalation.

Affected Products

Eleveo Call Recording Software 9.7.0
Deployments exposing the /callrec/group.jsp interface
Environments where low-privilege user accounts exist on the call recording platform

Discovery Timeline

2026-07-12 - CVE-2026-15470 published to NVD
2026-07-13 - Last updated in NVD database

Technical Details for CVE-2026-15470

Vulnerability Analysis

CVE-2026-15470 stems from improper authorization checks within the /callrec/group.jsp component of Eleveo Call Recording Software 9.7.0. The application accepts requests from authenticated users without validating whether the caller has the required role or ownership to perform the requested action. This maps to CWE-266: Incorrect Privilege Assignment, where privilege boundaries between user roles are not enforced at the server side. Because call recording platforms store sensitive audio and metadata, an authorization bypass on group management functionality can expose recordings, user assignments, and retention settings to unauthorized personnel. The attack requires network access and low-privilege authentication but does not require user interaction. According to the enriched data, a public proof-of-concept has been referenced through the GitHub CVE Repository and VulDB CVE Details.

Root Cause

The root cause is missing or insufficient server-side authorization enforcement inside group.jsp. The endpoint appears to rely on session authentication alone rather than verifying whether the authenticated principal is permitted to operate on the referenced group object. This class of flaw typically arises when access decisions are made only in the UI layer or through client-supplied parameters.

Attack Vector

An attacker with a valid low-privilege account submits crafted requests to /callrec/group.jsp targeting groups or actions outside their authorized scope. Because the endpoint is network-reachable and requires no user interaction, exploitation can be automated. Refer to the VulDB Vulnerability #377775 entry for additional technical context.

No verified exploitation code is available in the enriched data. The vulnerability is described in prose above; consult the referenced advisories for request-level detail.

Detection Methods for CVE-2026-15470

Indicators of Compromise

Requests to /callrec/group.jsp originating from user accounts that historically do not interact with group management functionality.
Successful HTTP 200 responses to group.jsp actions referencing group identifiers outside the authenticated user's assigned scope.
Sudden changes to group membership, retention policy, or recording assignments not tied to administrative sessions.

Detection Strategies

Enable verbose access logging on the Eleveo web tier and alert when non-administrative accounts issue write operations to /callrec/group.jsp.
Correlate authenticated session role with the target group ID in each request; flag mismatches for review.
Baseline normal per-user request patterns against group.jsp and alert on deviations such as high-volume enumeration.

Monitoring Recommendations

Forward Eleveo application and web server logs to a centralized SIEM for role-based access analysis.
Monitor for privilege changes, new administrative group creation, and unexpected exports of call recordings.
Review authentication logs for shared or dormant low-privilege accounts that could be leveraged to trigger the flaw.

How to Mitigate CVE-2026-15470

Immediate Actions Required

Restrict network access to the Eleveo Call Recording Software management interface to trusted administrative networks only.
Audit all user accounts and disable or reduce privileges for accounts that do not require access to the call recording platform.
Increase logging verbosity on /callrec/group.jsp and review historical logs for unauthorized group operations.

Patch Information

At the time of publication, no vendor patch is referenced in the enriched data. The vendor was contacted about the disclosure but did not respond. Monitor the Eleveo product advisories and vendor communications for an official fix, and apply it as soon as it becomes available.

Workarounds

Place the Eleveo web interface behind a reverse proxy or VPN that enforces additional authentication and network-layer authorization.
Apply web application firewall rules that restrict access to /callrec/group.jsp based on source IP and authenticated user role where possible.
Reduce the number of low-privilege accounts on the platform and rotate credentials to limit the pool of accounts capable of triggering the flaw.

bash

# Example: restrict access to /callrec/group.jsp at the reverse proxy (nginx)
location /callrec/group.jsp {
    allow 10.0.0.0/24;    # administrative subnet
    deny  all;
    proxy_pass http://eleveo-backend;
}