CVE-2026-103849 Adobe Commerce | Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336)
Adobe Commerce allows arbitrary code execution via template injection, enabling attackers to gain elevated access or control over user accounts without interaction.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-103849?
CVE-2026-103849 is a critical code injection vulnerability in Adobe Commerce, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-1336
Which versions are affected by CVE-2026-103849?
How do I fix CVE-2026-103849?
Apply the vendor's patch.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-103849 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-103849 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-r2jr-3wj5-6696, ROOT-APP-COMPOSER-CVE-2026-103849.