CVE-2026-75650: Adobe Commerce and Magento Improper Neutralization of Special Elements Used in a Template Engine Vulnerability
Adobe Commerce and Magento Open Source contain an improper neutralization of special elements used in a template engine vulnerability that could allow an attacker to execute arbitrary code.
Overview
Adobe Commerce and Magento Open Source contain a server-side template injection flaw that allows an unauthenticated remote attacker to execute arbitrary code on the application server. No authentication and no user interaction are required, and the scope change means a successful exploit can affect resources beyond the Commerce application itself. Affected versions span the 2.4.x release lines for both Commerce and Magento Open Source, as well as multiple Adobe Commerce B2B releases. Adobe has issued a hotfix designated for CVE-2026-7565 as the remediation path.
Vulnerability details
Server-side template injection (CWE-1336) occurs when an application passes attacker-controlled input to a template engine without first stripping or escaping template-syntax characters. Template engines such as Twig or Smarty are designed to evaluate expressions embedded in their syntax; when user input reaches the engine unsanitized, those expressions execute as code rather than being rendered as literal text. Adobe Commerce and Magento Open Source expose network-accessible endpoints that accept user-supplied data, and the flaw allows that data to reach the template rendering layer without adequate neutralization, giving the engine no way to distinguish injected directives from legitimate template content.
An attacker sends a crafted HTTP request containing template engine syntax to a publicly reachable endpoint of the Commerce or Magento installation. No credentials and no prior foothold are required. When the template engine processes the payload, it executes the injected code in the context of the application server process, giving the attacker full control over confidentiality, integrity, and availability of the application. The scope change in the vulnerability rating indicates the attacker can potentially affect resources outside the immediate application boundary, such as the underlying host or adjacent services accessible from the server process.
Severity and impact
Exploitation status
This vulnerability is confirmed as actively exploited in the wild — it is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog.
Detection and monitoring
- Monitor web server and application logs for HTTP requests containing template engine syntax patterns (such as double-brace expressions, percent-block tags, or hash-bracket constructs) in parameter values, headers, or request bodies directed at Commerce or Magento endpoints.
- Alert on unexpected outbound network connections or process spawning originating from the Commerce or Magento application server process, which may indicate post-exploitation activity following successful code injection.
- Audit application error logs for template rendering exceptions or sandbox escape errors, which can appear when injection payloads are partially blocked or malformed during probing attempts.
Remediation
Additional hardening
- Apply the Adobe-issued hotfix for CVE-2026-7565 to Adobe Commerce and Magento Open Source installations across all affected 2.4.x release lines and Adobe Commerce B2B releases; consult the vendor advisory listed in References for the specific patch packages.
- Restrict public network access to Commerce and Magento administrative and API endpoints using a web application firewall or network perimeter controls, reducing the attack surface available to unauthenticated remote attackers.
- Deploy a web application firewall rule set that detects and blocks common server-side template injection payload patterns in request parameters, headers, and body content before they reach the application layer.
- Run the Commerce or Magento application server process under a least-privilege OS account with no write access outside required directories and no outbound internet access, limiting the impact of any successful code execution.
Key dates
References
- https://helpx.adobe.com/security/products/magento/apsb26-146.html
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
- https://nvd.nist.gov/vuln/detail/CVE-2026-75650
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-75650
Frequently asked questions
Does CVE-2026-75650 affect my FedRAMP authorization?
If Adobe Commerce and Magento runs inside your authorization boundary, yes. CVE-2026-75650 appears in CISA's Known Exploited Vulnerabilities (KEV) catalog with a remediation deadline of September 11, 2026, a date that has already passed. For a FedRAMP-authorized service, an unpatched KEV inside the boundary is an assessor finding. An overdue one is visible to both your assessor and your sponsoring agency. At this point, you remediate immediately or formally document the mitigation and the delay.
How does Knox help me handle CVE-2026-75650?
Knox does not patch your software. Remediating Adobe Commerce and Magento is your responsibility under the FedRAMP shared-responsibility model. What Knox provides is the pre-authorized, single-tenant boundary to remediate within, along with continuous compliance monitoring and audit-artifact coverage that support documentation of the fix for your next assessment. Applying the patch is yours to own; managing your compliance posture while you do it is not something you have to handle alone.
How does Knox's monitoring help with vulnerabilities like this?
Knox's automated continuous monitoring platform watches your environment for newly disclosed vulnerabilities and compliance issues on an ongoing basis. For a CVE like CVE-2026-75650, that means exposure surfaces during continuous monitoring rather than only when an assessor flags it at review time, giving you more time to act before it becomes a formal finding.
How do I get FedRAMP authorized with Knox?
Knox runs a FedRAMP-as-a-Service platform. It gives SaaS vendors a pre-authorized cloud boundary on AWS, Azure, and GCP. Your application inherits 60-80% of the required security controls. You reach FedRAMP authorization in about 90 days for roughly 90% less than the traditional $3.5M path. Book a meeting and Knox will map your path to authorization.
CVE-2026-75650's remediation deadline of September 11, 2026 has passed. What happens now?
If CVE-2026-75650 remains unremediated, it is already a Plan of Action and Milestones (POA&M) item. A growing POA&M list is what turns a routine continuous-monitoring review into a difficult conversation with your sponsoring agency. Closing the finding out now and documenting the circumstances of the delay is what keeps your authorization standing and the agency relationship intact.
Ready to achieve FedRAMP authorization in 90 days or less?
Schedule a meeting to discuss scope, parse readiness, and map your company’s accelerated path to FedRAMP authorization.
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