CVE-2026-54664 acacode CVE debrief

Who should care

Developers and security teams using swagger-typescript-api, especially those integrating OpenAPI Specifications from untrusted sources, should assess exposure and take necessary actions to mitigate the vulnerability.

Why it matters

CVE-2026-54664 is a high-severity vulnerability in swagger-typescript-api that allows code injection through OpenAPI Specifications. Developers and security teams should assess exposure, especially when integrating from untrusted sources, and upgrade to version 13.12.2 or later. The vulnerability can lead to arbitrary code execution and requires verification of affected versions and OpenAPI Specifications.

• Code injection can lead to arbitrary code execution when the generated module is imported.
• Injection can occur through OpenAPI Specifications from untrusted sources.
• The vulnerability requires verification of affected versions and OpenAPI Specifications.
• Remediation involves upgrading to version 13.12.2 or later and validating OpenAPI Specifications.

Technical summary

The swagger-typescript-api library generates API clients for Fetch or Axios from an OpenAPI Specification. Prior to version 13.12.2, the library is vulnerable to code injection when processing OpenAPI Specifications. An attacker-controlled OpenAPI spec can inject code that executes when the generated module is imported. The vulnerability requires verification of affected versions and OpenAPI Specifications. Remediation involves upgrading to version 13.12.2 or later and validating OpenAPI Specifications. The issue allows an attacker-controlled OpenAPI spec to inject code that executes when the generated module is imported.

Defensive priority

High priority for developers and security teams using swagger-typescript-api, especially those integrating OpenAPI Specifications from untrusted sources.

Recommended defensive actions

• Developers and security teams should assess exposure and upgrade to version 13.12.2 or later.
• Review and validate OpenAPI Specifications from untrusted sources before using them with swagger-typescript-api.
• Implement compensating controls, such as validating and sanitizing OpenAPI Specifications before processing.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in swagger-typescript-api. The issue allows an attacker-controlled OpenAPI spec to inject code that executes when the generated module is imported. The vulnerability is fixed in version 13.12.2.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.