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Vulnerability · Published Jul 29, 2026 · Assigned by GitHub_M

CVE-2026-54666swagger-typescript-api vulnerable to code injection via unescaped OpenAPI path strings in generated method bodies

High 8.3

In plain English

A high-severity injection in swagger-typescript-api from acacode. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.3High
Exploit odds (30 days)0.4%top 70.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

swagger-typescript-api generates API clients for Fetch or Axios from an OpenAPI Specification. Prior to 13.12.2, src/schema-routes/schema-routes.ts passes OpenAPI path keys through parseRouteName to templates/default/procedure-call.ejs and templates/modular/procedure-call.ejs without escaping JavaScript template literal interpolation, allowing an attacker-controlled path containing ${...} to execute when the generated method is called. This issue is fixed in version 13.12.2.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
npmswagger-typescript-api13.12.2GHSA-w284-33mx-6g9v

Affected products (as reported)

VendorProductVersions
acacode swagger-typescript-api < 13.12.2

Weakness: CWE-74, CWE-94, CWE-1336 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

References