{"id":"CVE-2026-96757","title":"orval before 8.29.0 fails to escape OpenAPI media-type keys when emitting them into single-quoted Content-Type string literals in generated code","summary":"orval before 8.29.0 fails to escape OpenAPI media-type keys when emitting them into single-quoted Content-Type string literals in generated code. Attackers can inject JavaScript through crafted media-type keys in OpenAPI specifications t…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-94"],"vendor":"orval-labs","product":"orval","affected":["orval >= 6.7.1 < 8.29.0"],"published":"2026-09-23","updated":"2026-09-23","sourceUpdated":"2026-09-23T18:17:12.200","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-96757","references":[{"url":"https://github.com/orval-labs/orval","label":"disclosure@vulncheck.com"},{"url":"https://github.com/orval-labs/orval/blob/v8.28.1/packages/fetch/src/index.ts#L584","label":"disclosure@vulncheck.com"},{"url":"https://github.com/orval-labs/orval/commit/43af282d62dca0ef3140023741fb768f6a718adb","label":"disclosure@vulncheck.com"},{"url":"https://github.com/orval-labs/orval/commit/a2d4af59f3b167dc8a7a65d15f51cdb89ebe2fe5","label":"disclosure@vulncheck.com"},{"url":"https://github.com/orval-labs/orval/pull/4007","label":"disclosure@vulncheck.com"},{"url":"https://github.com/orval-labs/orval/security/advisories/GHSA-4q3x-rqfw-3x8p","label":"disclosure@vulncheck.com"},{"url":"https://github.com/orval-labs/orval/security/advisories/GHSA-rcpr-mq4m-jx9j","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/orval-before-8.29.0-code-injection-via-unescaped-openapi-media-type","label":"disclosure@vulncheck.com"},{"url":"https://github.com/orval-labs/orval/security/advisories/GHSA-4q3x-rqfw-3x8p","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-23T17:47:51.520475Z"},"ingestedAt":"2026-09-23T17:28:14.858Z","slug":"CVE-2026-96757","body":"## Overview\n\norval before 8.29.0 fails to escape OpenAPI media-type keys when emitting them into single-quoted Content-Type string literals in generated code. Attackers can inject JavaScript through crafted media-type keys in OpenAPI specifications that executes when generated fetch operations or mock resolvers are invoked.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":209821,"id":"CVE-2026-96757","ts":1790188235304,"field":"exploit_available","old":"false","new":"true"}]}