CVE-2026-54607: Labring Fastgpt

High severity, CVSS 7.7. EPSS: 0.5% chance of exploitation in the next 30 days.

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

• Labring Fastgpt: before 4.15.0-beta4 (fixed in 4.15.0-beta4)

Published 2026-07-07. Last modified 2026-07-08.