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CVE-2026-54662

8.3 · HIGH

swagger-typescript-api generates API clients for Fetch or Axios from OpenAPI specifications.

Published Jul 29, 2026CWE-74EPSS 0.48%

Overview

CVE-2026-54662 is a high-severity vulnerability. It was published on July 29, 2026 and has a CVSS 3.1 base score of 8.3 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

swagger-typescript-api generates API clients for Fetch or Axios from OpenAPI specifications. Prior to 13.12.2, src/code-gen-process.ts createApiConfig copies servers[0].url into apiConfig.baseUrl, and templates/base/http-clients/fetch-http-client.ejs interpolates apiConfig.baseUrl into the generated HttpClient baseUrl field without escaping, allowing an attacker-controlled OpenAPI spec to inject TypeScript static field code that executes when the generated fetch client module is imported. This issue is fixed in version 13.12.2.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/acacode/swagger-typescript-api/commit/306d59acb8ffbb00f953f807b97234b21f51d9deGitHubgithub.com/acacode/swagger-typescript-api/pull/1779GitHubgithub.com/acacode/swagger-typescript-api/releases/tag/v13.12.2GitHubgithub.com/acacode/swagger-typescript-api/security/advisories/GHSA-hqj5-cw9f-rx67GitHubgithub.com/acacode/swagger-typescript-api/security/advisories/GHSA-hqj5-cw9f-rx67

How CyberStrike helps

Frequently asked questions

What is CVE-2026-54662?

CVE-2026-54662 is a high-severity vulnerability. It was published on July 29, 2026 and has a CVSS 3.1 base score of 8.3 (HIGH).

How severe is CVE-2026-54662?

This vulnerability has a CVSS 3.1 base score of 8.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-54662?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-54662?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-54662 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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