CVE-2026-54607
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.7 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- EPSS
- 0.52% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-918
- Source
- security-advisories@github.com
References
- https://github.com/labring/FastGPT/commit/1d7b8768aecd53ae59372fd68b10af0e80722c79
- https://github.com/labring/FastGPT/pull/7073
- https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta4
- https://github.com/labring/FastGPT/security/advisories/GHSA-72hf-5382-2mq9
- https://github.com/labring/FastGPT/security/advisories/GHSA-72hf-5382-2mq9
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.