CVE-2026-54662

HIGH 8.3

swagger-typescript-api vulnerable to code injection via unescaped `servers[0].url` in fetch http-client template

CVSS Score

8.3

EPSS Score

0.0%

EPSS Percentile

0th

swagger-typescript-api generates API clients for Fetch or Axios from OpenAPI specifications. Prior to 13.12.2, src/code-gen-process.ts createApiConfig copies servers[0].url into apiConfig.baseUrl, and templates/base/http-clients/fetch-http-client.ejs interpolates apiConfig.baseUrl into the generated HttpClient baseUrl field without escaping, allowing an attacker-controlled OpenAPI spec to inject TypeScript static field code that executes when the generated fetch client module is imported. This issue is fixed in version 13.12.2.

CWE	CWE-74 CWE-94 CWE-1336
Vendor	acacode
Product	swagger-typescript-api
Published	Jul 29, 2026
Last Updated	Jul 29, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

acacode / swagger-typescript-api

< 13.12.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/acacode/swagger-typescript-api/security/advisories/GHSA-hqj5-cw9f-rx67 github.com: https://github.com/acacode/swagger-typescript-api/pull/1779 github.com: https://github.com/acacode/swagger-typescript-api/commit/306d59acb8ffbb00f953f807b97234b21f51d9de github.com: https://github.com/acacode/swagger-typescript-api/releases/tag/v13.12.2