CVE-2026-54660: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in acacode swagger-typescript-api
A vulnerability in swagger-typescript-api prior to version 13.12.2 allows exposure of sensitive bearer tokens. The issue occurs because the authorization token is forwarded to every URL fetched when resolving external references in OpenAPI specifications. This can lead to an attacker-controlled OpenAPI spec exfiltrating the developer or CI bearer token to a cross-origin endpoint. The vulnerability is fixed in version 13.12.2.
AI Analysis
Technical Summary
swagger-typescript-api versions before 13.12.2 contain a sensitive information exposure vulnerability (CWE-200) due to the forwarding of the --authorizationToken header to all URLs fetched during the resolution of external $ref URLs in OpenAPI specs. Specifically, the function getRemoteRequestHeaders forwards the authorization token to every URL fetched by fetchRemoteSchemaDocument during warmUpRemoteSchemasCache. This behavior allows an attacker who controls an OpenAPI specification to cause the bearer token to be sent to a cross-origin endpoint, potentially leaking sensitive credentials. The issue is resolved in version 13.12.2.
Potential Impact
An attacker controlling an OpenAPI specification can exfiltrate sensitive bearer tokens used by developers or CI systems by causing the vulnerable client to send these tokens to attacker-controlled cross-origin endpoints. This results in a confidentiality breach of sensitive authentication tokens. There is no indication of impact on integrity or availability. No known exploits in the wild have been reported.
Mitigation Recommendations
Upgrade swagger-typescript-api to version 13.12.2 or later, where this vulnerability is fixed. No other mitigation or temporary workaround is indicated.
CVE-2026-54660: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in acacode swagger-typescript-api
Description
A vulnerability in swagger-typescript-api prior to version 13.12.2 allows exposure of sensitive bearer tokens. The issue occurs because the authorization token is forwarded to every URL fetched when resolving external references in OpenAPI specifications. This can lead to an attacker-controlled OpenAPI spec exfiltrating the developer or CI bearer token to a cross-origin endpoint. The vulnerability is fixed in version 13.12.2.
CVSS v3.1
Score 7.4high
Affected software
acacode
swagger-typescript-api
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
swagger-typescript-api versions before 13.12.2 contain a sensitive information exposure vulnerability (CWE-200) due to the forwarding of the --authorizationToken header to all URLs fetched during the resolution of external $ref URLs in OpenAPI specs. Specifically, the function getRemoteRequestHeaders forwards the authorization token to every URL fetched by fetchRemoteSchemaDocument during warmUpRemoteSchemasCache. This behavior allows an attacker who controls an OpenAPI specification to cause the bearer token to be sent to a cross-origin endpoint, potentially leaking sensitive credentials. The issue is resolved in version 13.12.2.
Potential Impact
An attacker controlling an OpenAPI specification can exfiltrate sensitive bearer tokens used by developers or CI systems by causing the vulnerable client to send these tokens to attacker-controlled cross-origin endpoints. This results in a confidentiality breach of sensitive authentication tokens. There is no indication of impact on integrity or availability. No known exploits in the wild have been reported.
Mitigation Recommendations
Upgrade swagger-typescript-api to version 13.12.2 or later, where this vulnerability is fixed. No other mitigation or temporary workaround is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-15T20:16:46.199Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6a13c09c2644c7f8a6d7f6
Added to database: 07/29/2026, 14:52:48 UTC
Last enriched: 08/06/2026, 17:57:32 UTC
Last updated: 09/12/2026, 10:01:31 UTC
Views: 59
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