CVE-2026-27629 InvenTree Vulnerable to Server Side Template Injection (SSTI)

Medium 5.9 Published 25 Feb 2026 Updated 26 Feb 2026

Staff users can inject malicious Jinja2 templates into batch code generation, leading to server-side code execution and sensitive data exposure.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-27629?

CVE-2026-27629 is a medium-severity code injection vulnerability in InvenTree, published on 25 Feb 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

InvenTree is an Open Source Inventory Management System. Prior to version 1.2.3, insecure server-side templates can be hijacked to expose secure information to the client. When generating custom batch codes, the InvenTree server makes use of a customizable jinja2 template, which can be modified by a staff user to exfiltrate sensitive information or perform code execution on the server. This issue requires access by a user with granted staff permissions, followed by a request to generate a custom batch code via the API. Once the template has been modified in a malicious manner, the API call to generate a new batch code could be made by other users, and the template code will be executed with their user context. The code has been patched to ensure that all template generation is performed within a secure sandboxed context. This issue has been addressed in version 1.2.3, and any versions from 1.3.0 onwards. Some workarounds are available. The batch code template is a configurable global setting which can be adjusted via any user with staff access. To prevent this setting from being edited, it can be overridden at a system level to a default value, preventing it from being edited. This requires system administrator access, and cannot be changed from the client side once the server is running. It is recommended that for InvenTree installations prior to 1.2.3 the `STOCK_BATCH_CODE_TEMPLATE` and `PART_NAME_FORMAT` global settings are overridden at the system level to prevent editing.

Weakness: CWE-1336

Which versions are affected by CVE-2026-27629?

It affects 1 product.

Products include Inventree Project Inventree.

How do I fix CVE-2026-27629?

No fix has been published for CVE-2026-27629 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-27629 being exploited?

There is no known exploitation of CVE-2026-27629 in the wild and no public exploit code.

Sources

Also known as GHSA-cx85-vr3q-9x4m.