CVE-2026-47996: Adobe Commerce Auth Bypass Vulnerability

CVE-2026-47996 Overview

CVE-2026-47996 is an Incorrect Authorization vulnerability [CWE-863] affecting Adobe Commerce, Adobe Commerce B2B, Magento Open Source, and the Adobe I/O Events module for Commerce. A high-privileged attacker can leverage the flaw to bypass security controls and gain unauthorized read access to protected resources. The issue does not require user interaction and results in a scope change, meaning the impact extends beyond the vulnerable component. Adobe published the fix in security advisory APSB26-73.

Critical Impact
A high-privileged attacker can bypass authorization checks over the network to read data that should remain protected, with the impact crossing security boundaries.

Affected Products

Adobe Commerce versions 2.4.4 through 2.4.9 (including all patch releases)
Adobe Commerce B2B versions 1.3.3, 1.3.4, 1.4.2, 1.5.2, and 1.5.3 (including all patch releases)
Adobe Magento Open Source 2.4.6, 2.4.7, 2.4.8, and 2.4.9
Adobe I/O Events module for Commerce

Discovery Timeline

2026-07-14 - CVE-2026-47996 published to the National Vulnerability Database
2026-07-15 - Last updated in NVD database

Technical Details for CVE-2026-47996

Vulnerability Analysis

The vulnerability stems from an authorization check that fails to correctly validate whether the requesting principal is entitled to a given resource. Because the flaw sits in an authorization decision path rather than in input validation, standard perimeter defenses do not detect the abuse. The impact is limited to confidentiality: an attacker gains unauthorized read access but cannot modify data or disrupt service through this flaw alone. The scope change indicates the vulnerable component enforces permissions on resources managed by a different security authority, so a bypass in Commerce can expose data governed by another subsystem.

Root Cause

The defect is classified under [CWE-863] Incorrect Authorization. The application performs an authorization check, but the logic evaluates the wrong condition or fails to enforce the intended policy for certain object types or API paths. This class of flaw commonly appears in multi-tenant e-commerce platforms where administrative and merchant scopes must be strictly separated.

Attack Vector

Exploitation occurs over the network against the Commerce application. The attacker must already hold high-privileged credentials, such as an admin, integration, or merchant account with elevated permissions. Once authenticated, the attacker issues crafted requests to endpoints that rely on the flawed authorization logic to read data belonging to other scopes. No user interaction is required, which enables scripted abuse against multiple resources in a single session.

No public proof-of-concept has been published, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. However, the EPSS score of 18.028% places this issue in the 96th percentile for likelihood of exploitation, reflecting historical attacker interest in Magento and Commerce platforms.

Detection Methods for CVE-2026-47996

Indicators of Compromise

Unusual read access patterns from admin or integration accounts targeting resources outside their normal scope
REST or GraphQL API calls to Commerce endpoints returning data associated with other stores, websites, or customer segments
Bulk enumeration of order, customer, or catalog resources by a single authenticated session
Adobe I/O Events subscriptions or webhook configurations created or read by accounts that do not normally interact with the events service

Detection Strategies

Baseline API call volume and resource scope per admin user, then alert on deviations that suggest cross-scope reads
Correlate authentication events with subsequent access to resources outside the user's assigned website or store scope
Review Magento admin action logs for read operations that do not match the user's role definition
Enable verbose logging on the /rest/ and /graphql endpoints and forward to a centralized analytics platform for review

Monitoring Recommendations

Ship Adobe Commerce application, web server, and admin action logs to a centralized SIEM for correlation
Monitor for privilege changes and creation of new admin or integration tokens following the disclosure date
Track outbound data volume associated with authenticated admin sessions to identify large exfiltration patterns

How to Mitigate CVE-2026-47996

Immediate Actions Required

Apply the security updates referenced in Adobe Security Advisory APSB26-73 to all affected Commerce, Commerce B2B, and Magento Open Source installations
Audit all admin and integration accounts and remove or downgrade any that do not require elevated privileges
Rotate credentials and API tokens for high-privileged users, especially those with cross-store or cross-website scope
Review recent admin activity logs for read operations that indicate exploitation prior to patching

Patch Information

Adobe released fixed versions as part of the APSB26-73 security bulletin. Administrators should upgrade to the patched releases of Adobe Commerce 2.4.x, Commerce B2B 1.x, Magento Open Source 2.4.x, and update the Adobe I/O Events module for Commerce to the current release. Refer to the Adobe Security Advisory APSB26-73 for the exact fixed version matrix.

Workarounds

Restrict admin panel and REST/GraphQL API access to trusted IP ranges using web server or WAF rules until patches are applied
Enforce the principle of least privilege on all Commerce roles and remove standing high-privilege sessions
Enable and enforce multi-factor authentication on all admin accounts to reduce the risk of credential compromise leading to exploitation

bash

# Example nginx configuration restricting admin access to trusted networks
location ~* ^/(admin|rest/V1/integration) {
    allow 10.0.0.0/8;
    allow 192.168.0.0/16;
    deny all;
    try_files $uri $uri/ /index.php?$args;
}