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CVE-2026-54661

8.3 · HIGH

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

Published Jul 29, 2026CWE-74EPSS 0.48%

Overview

CVE-2026-54661 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 an OpenAPI Specification. Prior to 13.12.2, templates/base/http-clients/axios-http-client.ejs interpolates servers[0].url from src/code-gen-process.ts into the HttpClient constructor without escaping, allowing an attacker-controlled OpenAPI spec to inject code that executes when new HttpClient() or new Api() is constructed. 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-38c3-wv3c-v3xj

How CyberStrike helps

Frequently asked questions

What is CVE-2026-54661?

CVE-2026-54661 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-2026-54661?

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-2026-54661?

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-2026-54661?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-54661 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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