CVE-2026-54666: CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in acacode swagger-typescript-api
CVE-2026-54666 is a high-severity vulnerability in swagger-typescript-api prior to version 13.12.2. The issue arises because OpenAPI path keys are passed into JavaScript template literals without proper escaping, allowing attacker-controlled input containing ${...} to be executed when the generated API client method is called. This improper neutralization of special elements leads to potential code injection. The vulnerability is fixed in version 13.12.2.
AI Analysis
Technical Summary
The swagger-typescript-api tool generates API clients from OpenAPI specifications. In versions before 13.12.2, the source file src/schema-routes/schema-routes.ts passes OpenAPI path keys through parseRouteName into EJS templates (templates/default/procedure-call.ejs and templates/modular/procedure-call.ejs) without escaping JavaScript template literal interpolation. This allows an attacker to inject and execute arbitrary JavaScript code by crafting a malicious path containing ${...} sequences. The vulnerability is categorized under CWE-74 (Improper Neutralization of Special Elements in Output), CWE-94, and CWE-1336. The issue is resolved in version 13.12.2.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary JavaScript code in the context of the generated API client method, potentially leading to full compromise of the client application, data leakage, or other high-impact consequences. The CVSS 3.1 score of 8.3 reflects high impact on confidentiality, integrity, and availability, with network attack vector, high attack complexity, no privileges required, and user interaction required.
Mitigation Recommendations
Upgrade swagger-typescript-api to version 13.12.2 or later, where this vulnerability is fixed by properly escaping JavaScript template literal interpolation in the code generation templates. No other mitigation is indicated or required.
CVE-2026-54666: CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in acacode swagger-typescript-api
Description
CVE-2026-54666 is a high-severity vulnerability in swagger-typescript-api prior to version 13.12.2. The issue arises because OpenAPI path keys are passed into JavaScript template literals without proper escaping, allowing attacker-controlled input containing ${...} to be executed when the generated API client method is called. This improper neutralization of special elements leads to potential code injection. The vulnerability is fixed in version 13.12.2.
CVSS v3.1
Score 8.3high
Affected software
acacode
swagger-typescript-api
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The swagger-typescript-api tool generates API clients from OpenAPI specifications. In versions before 13.12.2, the source file src/schema-routes/schema-routes.ts passes OpenAPI path keys through parseRouteName into EJS templates (templates/default/procedure-call.ejs and templates/modular/procedure-call.ejs) without escaping JavaScript template literal interpolation. This allows an attacker to inject and execute arbitrary JavaScript code by crafting a malicious path containing ${...} sequences. The vulnerability is categorized under CWE-74 (Improper Neutralization of Special Elements in Output), CWE-94, and CWE-1336. The issue is resolved in version 13.12.2.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary JavaScript code in the context of the generated API client method, potentially leading to full compromise of the client application, data leakage, or other high-impact consequences. The CVSS 3.1 score of 8.3 reflects high impact on confidentiality, integrity, and availability, with network attack vector, high attack complexity, no privileges required, and user interaction required.
Mitigation Recommendations
Upgrade swagger-typescript-api to version 13.12.2 or later, where this vulnerability is fixed by properly escaping JavaScript template literal interpolation in the code generation templates. No other mitigation is indicated or required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-15T22:53:58.560Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6a13c09c2644c7f8a6d814
Added to database: 07/29/2026, 14:52:48 UTC
Last enriched: 08/06/2026, 17:57:43 UTC
Last updated: 09/13/2026, 00:15:46 UTC
Views: 67
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