CVE-2026-28797: RAGFlow: Server-Side Template Injection (SSTI) leading to Remote Code Execution (RCE) in Agent "Text Processing" Component

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-04-03 · updated 2026-07-24
Weakness: CWE-20

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.

Affected products

infiniflow ragflow: through 0.24.0

References

https://github.com/infiniflow/ragflow/security/advisories/GHSA-vvwj-fvwh-4whx

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