CVE-2026-54607 | THREATINT

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.

PUBLISHED Reserved 2026-06-15 | Published 2026-07-07 | Updated 2026-07-08 | Assigner GitHub_M

HIGH: 7.7CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Problem types

CWE-918: Server-Side Request Forgery (SSRF)

Product status

< 4.15.0-beta4

affected

References

github.com/...astGPT/security/advisories/GHSA-72hf-5382-2mq9 exploit

github.com/...astGPT/security/advisories/GHSA-72hf-5382-2mq9

github.com/labring/FastGPT/pull/7073

github.com/...ommit/1d7b8768aecd53ae59372fd68b10af0e80722c79

github.com/labring/FastGPT/releases/tag/v4.15.0-beta4

cve.org (CVE-2026-54607)

nvd.nist.gov (CVE-2026-54607)

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