CVE-2026-54607 FastGPT: SSRF in HTTP-tool OpenAPI schema importer via SwaggerParser $ref (bypasses the isInternalAddress guard)
Authenticated users can exploit an SSRF vulnerability in the OpenAPI importer to read internal services or cloud metadata by bypassing address guards.
- 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-2026-54607?
CVE-2026-54607 is a high-severity server-side request forgery vulnerability in labring FastGPT, published on 7 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
FastGPT is a knowledge-based AI application platform. Prior to 4.15.0-beta4, the HTTP-tool OpenAPI schema importer validates only the top-level URL before passing it to SwaggerParser.bundle, whose remote reference resolver fetches $ref URLs without FastGPT's internal-address guard and returns fetched content inline, allowing an authenticated team member to read internal services or cloud metadata. This issue is fixed in version 4.15.0-beta4.
Weakness: CWE-918
Which versions are affected by CVE-2026-54607?
How do I fix CVE-2026-54607?
No fix has been published for CVE-2026-54607 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-54607 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54607 exists.
Sources
Also known as GHSA-72hf-5382-2mq9.