CVE-2026-108551
CriticalCVSS 9.8Summary
Code injection vulnerability in openapi-typescript-codegen up to version 0.31.0. An attacker controlling an OpenAPI document can inject JavaScript by supplying unescaped values interpolated into single-quoted string literals. This can be exploited by embedding a single quote in path keys, parameter names, servers[0].url, or info.version.
Risk Assessment
An attacker could execute arbitrary JavaScript when generated clients are imported or service methods are called, potentially leading to application takeover or data theft.
Recommendation
Update openapi-typescript-codegen to a version above 0.31.0 if available. If not, avoid using untrusted OpenAPI documents and manually review generated code.
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Original NVD description (English source)
openapi-typescript-codegen through 0.31.0 contains a code injection vulnerability that allows attackers controlling an OpenAPI document to inject JavaScript by supplying unescaped values interpolated into single-quoted string literals. Attackers can embed a single quote in path keys, parameter names, servers[0].url, or info.version to execute arbitrary JavaScript when generated clients are imported or service methods called.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS