Critical severity9.8NVD Advisory· Published Oct 10, 2026
CVE-2026-108551
CVE-2026-108551
Description
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.
Affected products
1- Range: <=0.31.0
Patches
Vulnerability mechanics
References
4- github.com/ferdikoomen/openapi-typescript-codegen/blob/v0.31.0/src/templates/core/OpenAPI.hbsnvd
- github.com/ferdikoomen/openapi-typescript-codegen/blob/v0.31.0/src/templates/exportService.hbsnvd
- github.com/ferdikoomen/openapi-typescript-codegen/issues/2809nvd
- www.vulncheck.com/advisories/openapi-typescript-codegen-through-0.31.0-code-injection-via-handlebars-templatesnvd
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