Reference page — cumulative record through Tuesday, October 20, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-103849

CVE-2026-103849CRITICAL

Adobe Commerce | Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336)

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  C  H  H  H   10.0   .0078   55.1     —

AFFECTED
  Product              Versions     Fixed
  Adobe Commerce       unspecified  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
  Adobe Commerce B2B   unspecified  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
  Magento Open Source  unspecified  2.4.10-alpha1,2.4.9-2026-oct, 2.4.8-2026-oct, 2.4.7-2026-oct

TIMELINE
  Oct 1   Reserved by adobe
  Oct 13  Published (CNA: adobe)
  Oct 19  EXPLOIT PUBLISHED — CVE-2026-103849 (Adobe Commerce). Public exploit reference added.

CWE-1336 · CNA: adobe · CVSS v3.1 · 2 references · NVD status: Undergoing Analysis

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
October 1, 2026	Reserved	Reserved by adobe
October 13, 2026	Published	Published (CNA: adobe)
October 19, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-103849 (Adobe Commerce). Public exploit reference added.

Affected

Affected products and packages — 3 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Adobe	Adobe Commerce	—	—	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
Adobe	Adobe Commerce B2B	—	—	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
Adobe	Magento Open Source	—	—	2.4.10-alpha1,2.4.9-2026-oct, 2.4.8-2026-oct, 2.4.7-2026-oct

Weaknesses

CWE-1336

References (2)

https://github.com/dinosn/cve-2026-103849-blockstrap-lab [exploit]
https://www.adobe.com/trust/security/products/commerce/apsb26-153.html [vendor-advisory]

Authoritative record: CVE-2026-103849 at cve.org

Vendors: adobe

Weaknesses: CWE-1336

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-103849 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Tuesday, October 20, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.