Vulnerability · Published Jul 7, 2026 · Assigned by GitHub_M

CVE-2026-54607FastGPT: SSRF in HTTP-tool OpenAPI schema importer via SwaggerParser $ref (bypasses the isInternalAddress guard)

High 7.7

In plain English

A high-severity server-side request forgery in FastGPT from labring. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.1)7.7High

Exploit odds (30 days)0.4%top 69.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
labring	FastGPT	< 4.15.0-beta4

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

References

https://github.com/labring/FastGPT/security/advisories/GHSA-72hf-5382-2mq9 x_refsource_CONFIRM
https://github.com/labring/FastGPT/pull/7073 x_refsource_MISC
https://github.com/labring/FastGPT/commit/1d7b8768aecd53ae59372fd68b10af0e80722c79 x_refsource_MISC
https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta4 x_refsource_MISC