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TI-2026-71941 Aliases CVE-2026-103849GHSA-r2jr-3wj5-6696

Template engine injection in Adobe Commerce allows code execution

Priority HIGH 82CWE-1336Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-1336.

Summary

Adobe Commerce versions through 2.4.9-2026-sep, 2.4.8-2026-sep, 2.4.7-2026-sep, 2.4.6-2026-sep, 2.4.5-2026-sep and 2.4.4-2026-sep, Adobe Commerce B2B versions through 1.5.3-2026-sep, 1.5.2-2026-sep, 1.4.2-2026-sep, 1.3.4-2026-sep and 1.3.3-2026-sep, and Magento Open Source versions through 2.4.9-2026-sep, 2.4.8-2026-sep and 2.4.7-2026-sep are affected. Improper neutralization of special elements in a template engine (CWE-1336) lets crafted input run as code. An unauthenticated remote attacker can execute arbitrary code in the current user's context without user interaction, potentially gaining elevated access or control over the victim's account or session. Scope is changed.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Description from the CNA

Adobe Commerce is affected by an Improper Neutralization of Special Elements Used in a Template Engine vulnerability that could result in arbitrary code execution in the context of the current user, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue does not require user interaction. Scope is changed.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0117 67th percentileScored 2026-11-07
Fix Fixed Adobe Commerce (Adobe): 2.4.10-alpha1,2.4.9-2026-oct, 2.4.8-2026-oct, 2.4.7-2026-oct +3Adobe Commerce B2B (Adobe): 1.5.4-alpha1,1.5.3-2026-oct, 1.5.2-2026-oct, 1.4.2-2026-oct +2+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AdobeAdobe Commerceup to 2.4.9-2026-sep, 2.4.8-2026-sep, 2.4.7-2026-sep, 2.4.6-2026-sep, 2.4.5-2026-sep, 2.4.4-2026-sep2.4.10-alpha1,2.4.9-2026-oct, 2.4.8-2026-oct, 2.4.7-2026-oct, 2.4.6-2026-oct, 2.4.5-2026-oct, 2.4.4-2026-octPatch availableCNA
AdobeAdobe Commerce B2Bup to 1.5.3-2026-sep, 1.5.2-2026-sep, 1.4.2-2026-sep, 1.3.4-2026-sep, 1.3.3-2026-sep1.5.4-alpha1,1.5.3-2026-oct, 1.5.2-2026-oct, 1.4.2-2026-oct, 1.3.4-2026-oct, 1.3.3-2026-octPatch availableCNA
AdobeMagento Open Sourceup to 2.4.9-2026-sep, 2.4.8-2026-sep, 2.4.7-2026-sep2.4.10-alpha1,2.4.9-2026-oct, 2.4.8-2026-oct, 2.4.7-2026-octPatch availableCNA
  • Adobe Commerce VendorAdobe Affected up to 2.4.9-2026-sep, 2.4.8-2026-sep, 2.4.7-2026-sep, 2.4.6-2026-sep, 2.4.5-2026-sep, 2.4.4-2026-sep Fixed in 2.4.10-alpha1,2.4.9-2026-oct, 2.4.8-2026-oct, 2.4.7-2026-oct, 2.4.6-2026-oct, 2.4.5-2026-oct, 2.4.4-2026-oct Patch available CNA
  • Adobe Commerce B2B VendorAdobe Affected up to 1.5.3-2026-sep, 1.5.2-2026-sep, 1.4.2-2026-sep, 1.3.4-2026-sep, 1.3.3-2026-sep Fixed in 1.5.4-alpha1,1.5.3-2026-oct, 1.5.2-2026-oct, 1.4.2-2026-oct, 1.3.4-2026-oct, 1.3.3-2026-oct Patch available CNA
  • Magento Open Source VendorAdobe Affected up to 2.4.9-2026-sep, 2.4.8-2026-sep, 2.4.7-2026-sep Fixed in 2.4.10-alpha1,2.4.9-2026-oct, 2.4.8-2026-oct, 2.4.7-2026-oct Patch available CNA

Remediation

Upgrade Adobe Commerce to 2.4.10-alpha1, 2.4.9-2026-oct, 2.4.8-2026-oct, 2.4.7-2026-oct, 2.4.6-2026-oct, 2.4.5-2026-oct or 2.4.4-2026-oct, Adobe Commerce B2B to 1.5.4-alpha1, 1.5.3-2026-oct, 1.5.2-2026-oct, 1.4.2-2026-oct, 1.3.4-2026-oct or 1.3.3-2026-oct, and Magento Open Source to 2.4.10-alpha1, 2.4.9-2026-oct, 2.4.8-2026-oct or 2.4.7-2026-oct.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

  • Fix · CNA Adobe Commerce (Adobe) Fixed in 2.4.10-alpha1,2.4.9-2026-oct, 2.4.8-2026-oct, 2.4.7-2026-oct, 2.4.6-2026-oct, 2.4.5-2026-oct, 2.4.4-2026-oct
  • Fix · CNA Adobe Commerce B2B (Adobe) Fixed in 1.5.4-alpha1,1.5.3-2026-oct, 1.5.2-2026-oct, 1.4.2-2026-oct, 1.3.4-2026-oct, 1.3.3-2026-oct
  • Fix · CNA Magento Open Source (Adobe) Fixed in 2.4.10-alpha1,2.4.9-2026-oct, 2.4.8-2026-oct, 2.4.7-2026-oct

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Adobe Commerce, Adobe Commerce B2B, Magento Open Source — adobe.com/trust/security/products/commerce/apsb26-153.html

    11 records Highest priority Priority HIGH 1 HIGH, 6 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2026-71929 Incorrect authorization in Adobe Commerce allows code executionPriority MEDIUM 50
    • TI-2026-71938 Stored cross-site scripting in Adobe Commerce form fieldsPriority MEDIUM 44
    • TI-2026-71925 Stored cross-site scripting in Adobe Commerce form fieldsPriority MEDIUM 44
    Show all 11 records → Advisory →

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-103849
  2. 2026-10-13 Alias added: GHSA-r2jr-3wj5-6696
  3. 2026-10-14 CISA SSVC decision points changed
  4. 2026-10-15 CISA SSVC decision points changed
  5. 2026-10-19 CISA SSVC decision points changed
  6. 2026-10-19 Priority changed: MEDIUM → HIGH
  7. 2026-10-20 CISA SSVC decision points changed

References

Advisory 1

  • TI-2026-52938 Adobe Commerce | Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336) KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-35688 ColdFusion | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-34084 Adobe Experience Manager | Incorrect Authorization (CWE-863) KEVCVSS 3.1CRITICAL 10.0
  • TI-2024-22559 XXE can expose crypt key and other secrets granting full admin access KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-19615 Analysis CVE-2023-29300 Bypass: Adobe ColdFusion Pre-Auth RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-13696 Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution KEVCVSS 3.1CRITICAL 9.8
See all 8046 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences