Is CVE-2026-103849 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-103849 being exploited in the wild.

How severe is CVE-2026-103849?

Critical severity, with a CVSS score of 10, published 13 October 2026.

Which products and versions are affected?

Adobe Commerce 2.4.4-2026-sep through 2.4.9-2026-sep; Adobe Commerce B2b 1.3.3-2026-sep through 1.5.3-2026-sep; Adobe Magento Open Source 2.4.6-2026-sep through 2.4.9-2026-sep.

Is there a fix for CVE-2026-103849?

Yes: fixed in Adobe Commerce 2.4.4-2026-oct, 2.4.5-2026-oct, 2.4.6-2026-oct, 2.4.7-2026-oct, 2.4.8-2026-oct, 2.4.9-2026-oct; Adobe Commerce B2B 1.3.3-2026-oct, 1.3.4-2026-oct, 1.4.2-2026-oct, 1.5.2-2026-oct, 1.5.3-2026-oct; Magento Open Source 2.4.7-2026-oct, 2.4.8-2026-oct, 2.4.9-2026-oct. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-103849 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-103849?

Check whether you run Adobe Commerce, Adobe Commerce B2b or Adobe Magento Open Source at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-103849: Adobe Commerce template injection leading to arbitrary code execution

CVE-2026-103849 · Severity: critical · CVSS 10 · Published 2026-10-13

Adobe Commerce, a widely-used e-commerce platform that powers online storefronts, is vulnerable to a template injection flaw that allows attackers to execute arbitrary code without authentication. An attacker could gain complete control over a Commerce installation, stealing customer data, manipulating transactions, or injecting malware. This is a critical vulnerability with a perfect CVSS score of 10.0.

Technologies: Adobe Commerce, Adobe Commerce B2b, Adobe Magento Open Source. Vendors: Adobe.

Quick answers

Is CVE-2026-103849 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-103849 being exploited in the wild.
How severe is CVE-2026-103849?: Critical severity, with a CVSS score of 10, published 13 October 2026.
Which products and versions are affected?: Adobe Commerce 2.4.4-2026-sep through 2.4.9-2026-sep; Adobe Commerce B2b 1.3.3-2026-sep through 1.5.3-2026-sep; Adobe Magento Open Source 2.4.6-2026-sep through 2.4.9-2026-sep.
Is there a fix for CVE-2026-103849?: Yes: fixed in Adobe Commerce 2.4.4-2026-oct, 2.4.5-2026-oct, 2.4.6-2026-oct, 2.4.7-2026-oct, 2.4.8-2026-oct, 2.4.9-2026-oct; Adobe Commerce B2B 1.3.3-2026-oct, 1.3.4-2026-oct, 1.4.2-2026-oct, 1.5.2-2026-oct, 1.5.3-2026-oct; Magento Open Source 2.4.7-2026-oct, 2.4.8-2026-oct, 2.4.9-2026-oct. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-103849 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-103849?: Check whether you run Adobe Commerce, Adobe Commerce B2b or Adobe Magento Open Source at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: Adobe Commerce 2.4.4-2026-oct, 2.4.5-2026-oct, 2.4.6-2026-oct, 2.4.7-2026-oct, 2.4.8-2026-oct, 2.4.9-2026-oct; Adobe Commerce B2B 1.3.3-2026-oct, 1.3.4-2026-oct, 1.4.2-2026-oct, 1.5.2-2026-oct, 1.5.3-2026-oct; Magento Open Source 2.4.7-2026-oct, 2.4.8-2026-oct, 2.4.9-2026-oct

Technical details

The vulnerability is an improper neutralization of special elements in a template engine (CWE-1336) that permits unauthenticated remote code execution with changed scope. An attacker can inject malicious template code that executes in the application context, bypassing access controls and compromising confidentiality, integrity, and availability. A fix is available in multiple patched version branches.

Affected products

Adobe Commerce 2.4.4-2026-sep through 2.4.9-2026-sep
Adobe Commerce B2B 1.3.3-2026-sep through 1.5.3-2026-sep
Adobe Magento Open Source 2.4.6-2026-sep through 2.4.9-2026-sep

Timeline

2026-10-13: disclosed

References

https://www.adobe.com/trust/security/products/commerce/apsb26-153.html

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