CVE-2026-54607CWE-918

FastGPT: SSRF in HTTP-tool OpenAPI schema importer via SwaggerParser $ref (bypasses the isInternalAddress guard)

High · published July 7, 2026

CVSS v3.1
7.7
EPSS
1%
Percentile
43.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00523 · 43.5th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-07-07T21:20Z
EPSS history
Timeline
  • 07 JUL 21:20Z
    FastGPT: SSRF in HTTP-tool OpenAPI schema importer via SwaggerParser $ref (bypasses the isInternalAddress guard)
    cvelistv5