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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-1336",
"CWE-74",
"CWE-94"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54666.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "13.12.2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "306d59acb8ffbb00f953f807b97234b21f51d9de"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v13.12.2",
"range": [
{
"fixed": "cc3e4d1598dfd990b8d862b88cd64ae1ca7653e3"
}
],
"source": "REFERENCES_TAG"
}
]
}