{"id":"CVE-2026-108551","revision":"e9820e260410419aa6c33c6090c7ff4b","records":[{"revision":"e9820e260410419aa6c33c6090c7ff4b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-108551","aliases":[],"title":"openapi-typescript-codegen through 0.31.0 Code Injection via Handlebars Templates","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.","state":0,"publishedAt":"2026-10-10T14:35:05.552+00:00","modifiedAt":"2026-10-13T18:27:49.183+00:00","affected":[{"ecosystem":"Vendor product","name":"openapi-typescript-codegen","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"ferdikoomen\",\n                    \"product\": \"openapi-typescript-codegen\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/openapi-typescript-codegen\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThanOrEqual\": \"0.31.0\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://github.com/ferdikoomen/openapi-typescript-codegen/issues/2809","https://github.com/ferdikoomen/openapi-typescript-codegen","https://github.com/ferdikoomen/openapi-typescript-codegen/blob/v0.31.0/src/templates/exportService.hbs#L89-L110","https://github.com/ferdikoomen/openapi-typescript-codegen/blob/v0.31.0/src/templates/core/OpenAPI.hbs#L20-L23","https://www.vulncheck.com/advisories/openapi-typescript-codegen-through-0.31.0-code-injection-via-handlebars-templates"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-108551","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-108551","identifiers":["CVE-2026-108551"]},"retained":false,"historicalAffected":[]}],"coverage":[]}