CVE-2026-48001 Overview
CVE-2026-48001 is an Information Exposure vulnerability [CWE-200] affecting Adobe Commerce, Adobe Commerce B2B, Magento Open Source, and the Adobe I/O Events module for Commerce. An unauthenticated network-based attacker can trigger limited disclosure of sensitive information without user interaction. Exploitation depends on conditions beyond the attacker's control, which raises attack complexity and reduces reliability.
Adobe published the fix in security bulletin APSB26-73. The vulnerability affects a wide range of Commerce releases from 2.4.4 through 2.4.9, and Commerce B2B 1.3.3 through 1.5.3.
Critical Impact
Successful exploitation exposes limited confidential data from Adobe Commerce storefronts, which can support reconnaissance for follow-on attacks against merchant environments.
Affected Products
- Adobe Commerce versions 2.4.4 through 2.4.9 (including all patch levels)
- Adobe Commerce B2B versions 1.3.3 through 1.5.3
- Magento Open Source 2.4.6 through 2.4.9 and Adobe I/O Events for Commerce
Discovery Timeline
- 2026-07-14 - CVE-2026-48001 published to the National Vulnerability Database
- 2026-07-15 - Last updated in NVD database
Technical Details for CVE-2026-48001
Vulnerability Analysis
The flaw is classified under [CWE-200] Exposure of Sensitive Information to an Unauthorized Actor. Adobe Commerce returns data that should remain restricted to authorized contexts, allowing a remote attacker to observe limited sensitive content through network requests. No authentication or user interaction is required to trigger the condition.
The scope of disclosed data is limited, and exploitation requires specific runtime conditions that the attacker cannot directly manipulate. This constrains reliable weaponization but does not eliminate the risk for internet-exposed storefronts. The EPSS score of 0.542% reflects a low near-term exploitation probability.
Root Cause
The root cause is improper restriction of sensitive information within Adobe Commerce responses or logs. A component in the Commerce stack, potentially including the Adobe I/O Events integration, returns data without applying sufficient access checks or data-scrubbing controls. Adobe's advisory APSB26-73 documents the impacted component set and corrected releases.
Attack Vector
The attack vector is network-based. A remote actor sends crafted requests to a vulnerable Commerce endpoint and inspects the response for exposed values. Because exploitation depends on server-side state or timing beyond the attacker's control, success is opportunistic rather than deterministic. Attackers typically chain limited information disclosure with other Commerce weaknesses to pivot toward account takeover, order manipulation, or payment fraud.
No public proof-of-concept, exploit module, or in-the-wild exploitation has been reported at the time of publication. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.
Detection Methods for CVE-2026-48001
Indicators of Compromise
- Repeated unauthenticated requests to Commerce REST, GraphQL, or Adobe I/O Events endpoints from a single source with abnormal response-size patterns.
- Web server responses containing unexpected internal identifiers, configuration values, or customer-related fields returned to unauthenticated sessions.
- Anomalous scraping behavior against product, cart, or checkout APIs on Commerce versions 2.4.4 through 2.4.9.
Detection Strategies
- Inventory Commerce, Commerce B2B, Magento Open Source, and Adobe I/O Events versions and flag any instance matching the affected CPE ranges.
- Deploy a web application firewall rule set that inspects Commerce API responses for sensitive field patterns leaving the application boundary.
- Correlate web access logs with authentication logs to identify high-volume unauthenticated access to endpoints that normally require a session.
Monitoring Recommendations
- Enable verbose logging on /rest/, /graphql, and Adobe I/O Events routes and forward events to a centralized analytics platform for baselining.
- Alert on outbound response payloads that exceed normal size thresholds for unauthenticated endpoints.
- Track vendor advisories at the Adobe Magento Security Advisory page for updated guidance.
How to Mitigate CVE-2026-48001
Immediate Actions Required
- Apply the security update referenced in Adobe bulletin APSB26-73 to all Commerce, Commerce B2B, Magento Open Source, and Adobe I/O Events installations.
- Restrict internet exposure of administrative and integration endpoints using network ACLs, VPN, or IP allow-lists.
- Rotate any API keys, integration tokens, and admin credentials that may have been observable through the exposed data path.
Patch Information
Adobe released fixed builds as part of security bulletin APSB26-73. Merchants should upgrade to the patched Commerce release aligned with their current major version and update the Adobe I/O Events for Commerce module to the corresponding fixed version. Full details are available in the Adobe Magento Security Advisory.
Workarounds
- Place a web application firewall in front of the storefront and block anomalous unauthenticated requests to REST, GraphQL, and Adobe I/O Events routes.
- Disable the Adobe I/O Events module on instances that do not require it until the patch is applied.
- Enforce rate limiting on unauthenticated API traffic to reduce the value of iterative information-gathering probes.
# Example: verify installed Adobe Commerce version and apply the vendor patch
php bin/magento --version
composer require magento/product-community-edition=<patched-version> --no-update
composer update
php bin/magento setup:upgrade
php bin/magento cache:flush
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
