How severe is CVE-2026-28797?

CVE-2026-28797 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-28797 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28797?

CVE-2026-28797 affects Infiniflow Ragflow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28797?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-28797 have an EU (EUVD) identifier?

Yes. CVE-2026-28797 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18876.

When was CVE-2026-28797 published?

CVE-2026-28797 was published on 2026-04-03 and last updated on 2026-06-17.

CVE-2026-28797

CVE-2026-28797 is a high-severity vulnerability in Infiniflow Ragflow with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18876
Weakness: CWE-20
Affected product: Infiniflow Ragflow
Published: 2026-04-03
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-28797?: 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.
How severe is CVE-2026-28797?: CVE-2026-28797 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-28797 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28797?: CVE-2026-28797 affects Infiniflow Ragflow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28797?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-28797 have an EU (EUVD) identifier?: Yes. CVE-2026-28797 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18876.
When was CVE-2026-28797 published?: CVE-2026-28797 was published on 2026-04-03 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:infiniflow:ragflow:*:*:*:*:*:*:*:*

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