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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-20",
"CWE-441",
"CWE-918"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54663.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "13.12.2"
}
],
"source": [
"AFFECTED_FIELD",
"REFERENCES"
]
}