{"id":"CVE-2026-54662","state":"PUBLISHED","title":"swagger-typescript-api vulnerable to code injection via unescaped `servers[0].url` in fetch http-client template","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.","publishedAt":"2026-07-29T14:26:15.992Z","updatedAt":"2026-07-29T15:16:06.092Z","severity":{"score":8.3,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["acacode swagger-typescript-api"],"affected":[{"vendor":"acacode","product":"swagger-typescript-api","versions":[{"version":"< 13.12.2","status":"affected"}]}],"references":["https://github.com/acacode/swagger-typescript-api/security/advisories/GHSA-hqj5-cw9f-rx67","https://github.com/acacode/swagger-typescript-api/pull/1779","https://github.com/acacode/swagger-typescript-api/commit/306d59acb8ffbb00f953f807b97234b21f51d9de","https://github.com/acacode/swagger-typescript-api/releases/tag/v13.12.2"],"weaknesses":["CWE-74","CWE-94","CWE-1336"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54662.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54662","state":"PUBLISHED","datePublished":"2026-07-29T14:26:15.992Z","dateUpdated":"2026-07-29T15:16:06.092Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-15T20:16:46.199Z"},"containers":{"cna":{"title":"swagger-typescript-api vulnerable to code injection via unescaped `servers[0].url` in fetch http-client template","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"acacode","product":"swagger-typescript-api","versions":[{"version":"< 13.12.2","status":"affected"}]}],"references":[{"url":"https://github.com/acacode/swagger-typescript-api/security/advisories/GHSA-hqj5-cw9f-rx67","name":"https://github.com/acacode/swagger-typescript-api/security/advisories/GHSA-hqj5-cw9f-rx67","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/acacode/swagger-typescript-api/pull/1779","name":"https://github.com/acacode/swagger-typescript-api/pull/1779","tags":["x_refsource_MISC"]},{"url":"https://github.com/acacode/swagger-typescript-api/commit/306d59acb8ffbb00f953f807b97234b21f51d9de","name":"https://github.com/acacode/swagger-typescript-api/commit/306d59acb8ffbb00f953f807b97234b21f51d9de","tags":["x_refsource_MISC"]},{"url":"https://github.com/acacode/swagger-typescript-api/releases/tag/v13.12.2","name":"https://github.com/acacode/swagger-typescript-api/releases/tag/v13.12.2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.3,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-74","lang":"en","description":"CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-94","lang":"en","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-1336","lang":"en","description":"CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-29T14:26:15.992Z"},"source":{"advisory":"GHSA-hqj5-cw9f-rx67","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/acacode/swagger-typescript-api/security/advisories/GHSA-hqj5-cw9f-rx67","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-29T15:15:30.473520Z","id":"CVE-2026-54662","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-29T15:16:06.092Z"}}]}}}