CVE-2026-54662

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

Published Jul 29, 2026 CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-hqj5-cw9f-rx67 swagger-typescript-api vulnerable to code injection via unescaped `servers[0].url` in fetch http-client template
History
Type Values Removed Values Added
First Time appeared Acacode
Acacode swagger-typescript-api
Vendors & Products Acacode
Acacode swagger-typescript-api
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title swagger-typescript-api vulnerable to code injection via unescaped `servers[0].url` in fetch http-client template
Weaknesses CWE-1336
CWE-74
CWE-94
References
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 29, 2026, 3:16 PM
Reserved
Jun 15, 2026, 8:16 PM
Status
Deferred
Published
Jul 29, 2026, 3:16 PM
Modified
Oct 23, 2026, 11:10 PM