{"id":"CVE-2026-77360","title":"oRPC is an tool that helps build APIs that are end-to-end type-safe and adhere to OpenAPI standards","summary":"oRPC is an tool that helps build APIs that are end-to-end type-safe and adhere to OpenAPI standards. Prior to 1.14.8, the @orpc/server CORS plugin in packages/server/src/plugins/cors.ts copies a client's incoming Vary request header into…","severity":"medium","cvss":6.3,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","cwe":["CWE-113"],"vendor":"middleapi","product":"orpc","affected":["orpc < 1.14.8"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T20:17:31.877","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77360","references":[{"url":"https://github.com/middleapi/orpc/commit/daabded122a89d323357c4c401e879701864cb2f","label":"security-advisories@github.com"},{"url":"https://github.com/middleapi/orpc/issues/1661","label":"security-advisories@github.com"},{"url":"https://github.com/middleapi/orpc/pull/1662","label":"security-advisories@github.com"},{"url":"https://github.com/middleapi/orpc/releases/tag/v1.14.8","label":"security-advisories@github.com"},{"url":"https://github.com/middleapi/orpc/security/advisories/GHSA-j9v4-rhgr-4m5f","label":"security-advisories@github.com"},{"url":"https://github.com/middleapi/orpc/issues/1661","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77360"},{"url":"https://github.com/advisories/GHSA-j9v4-rhgr-4m5f"}],"tags":["nvd","cve.org","exploit-available","ghsa","npm"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-16T19:40:46.280651Z"},"cvssSource":"cna","ingestedAt":"2026-09-16T19:02:30.727Z","aliases":["GHSA-j9v4-rhgr-4m5f"],"ecosystem":"npm","patched":["@orpc/server 1.14.8"],"epss":0.00623,"epssPercentile":0.48493,"slug":"CVE-2026-77360","body":"## Overview\n\noRPC is an tool that helps build APIs that are end-to-end type-safe and adhere to OpenAPI standards. Prior to 1.14.8, the @orpc/server CORS plugin in packages/server/src/plugins/cors.ts copies a client's incoming Vary request header into the response instead of controlling Vary as a response-only header and using Origin for request-origin variation. In deployments behind a shared cache, CDN, or reverse proxy that keys responses using Vary, a client can inject arbitrary variation values, pollute cache keys, and cause inconsistent CORS enforcement for other clients. Default non-cached configurations have no established direct confidentiality, integrity, or availability impact. This issue is fixed in version 1.14.8.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-77360)\n\nAffected packages:\n\n- `@orpc/server <= 1.14.7`\n\nPatched in:\n\n- `@orpc/server 1.14.8`\n\nSource: https://github.com/advisories/GHSA-j9v4-rhgr-4m5f","depth":"twilight","depthScore":47,"depthScoreParts":{"impact":34.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":205715,"id":"CVE-2026-77360","ts":1789589117256,"field":"exploit_available","old":"false","new":"true"}]}