Moderate severityNVD Advisory· Published Jul 29, 2026· Updated Jul 29, 2026
swagger-typescript-api vulnerable to Server-Side Request Forgery via spec `$ref`
CVE-2026-54663
Description
swagger-typescript-api generates API clients for Fetch or Axios from OpenAPI specifications. Prior to 13.12.2, src/resolved-swagger-schema.ts warmUpRemoteSchemasCache resolves external $ref URLs and fetchRemoteSchemaDocument uses isHttpUrl to fetch any http or https target without private IP, redirect, DNS rebinding, or same-origin validation, allowing an attacker-controlled OpenAPI spec to make the generator issue requests to internal or link-local services. This issue is fixed in version 13.12.2.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
swagger-typescript-apinpm | < 13.12.2 | 13.12.2 |
Affected products
1- Range: <13.12.2
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-x36r-4347-pm5xghsaADVISORY
- github.com/acacode/swagger-typescript-api/commit/306d59acb8ffbb00f953f807b97234b21f51d9deghsax_refsource_MISCWEB
- github.com/acacode/swagger-typescript-api/pull/1779ghsax_refsource_MISCWEB
- github.com/acacode/swagger-typescript-api/releases/tag/v13.12.2ghsax_refsource_MISCWEB
- github.com/acacode/swagger-typescript-api/security/advisories/GHSA-x36r-4347-pm5xghsax_refsource_CONFIRMWEB
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