CVE-2026-28797 Code injection in ragflow

High 8.7 Published 3 Apr 2026 Updated 6 Apr 2026

Authenticated users can execute arbitrary OS commands via SSTI in RAGFlow's Text Processing components due to unsandboxed Jinja2 template rendering.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-28797?

CVE-2026-28797 is a high-severity code injection vulnerability in infiniflow ragflow, published on 3 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

RAGFlow is an open-source RAG (Retrieval-Augmented Generation) engine. In versions 0.24.0 and prior, a Server-Side Template Injection (SSTI) vulnerability exists in RAGFlow's Agent workflow Text Processing (StringTransform) and Message components. These components use Python's jinja2.Template (unsandboxed) to render user-supplied templates, allowing any authenticated user to execute arbitrary operating system commands on the server. At time of publication, there are no publicly available patches.

Weakness: CWE-94, CWE-78, CWE-20, CWE-1336

Which versions are affected by CVE-2026-28797?

It affects 1 product.

Products include Infiniflow Ragflow.

How do I fix CVE-2026-28797?

No fix has been published for CVE-2026-28797 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-2026-28797 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-28797 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-vvwj-fvwh-4whx.