{"cve":"CVE-2026-33331","nvd":{"published":"2026-03-24T20:16:28.547","modified":"2026-06-17T10:37:20.020","status":"Analyzed","description":"oRPC is an tool that helps build APIs that are end-to-end type-safe and adhere to OpenAPI standards. Prior to version 1.13.9, a stored cross-site scripting (XSS) vulnerability exists in the OpenAPI documentation generation of orpc. If an attacker can control any field within the OpenAPI specification (such as info.description), they can break out of the JSON context and execute arbitrary JavaScript when a user views the generated API documentation. This issue has been patched in version 1.13.9.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4},"cwes":["CWE-79"],"references":["https://github.com/middleapi/orpc/commit/4f0efa8a1d3fa8e8317a4b03cc3945a5dfd68add","https://github.com/middleapi/orpc/releases/tag/v1.13.9","https://github.com/middleapi/orpc/security/advisories/GHSA-7f6v-3gx7-27q8","https://github.com/middleapi/orpc/security/advisories/GHSA-7f6v-3gx7-27q8"],"products":["orpc:orpc"],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-33331","score":0.00293,"percentile":0.21877,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-7f6v-3gx7-27q8","url":"https://osv.dev/vulnerability/GHSA-7f6v-3gx7-27q8","summary":"oRPC has Stored XSS in OpenAPI Reference Plugin via unescaped JSON.stringify","modified":"2026-03-27T22:16:26.787307Z","packages":[{"ecosystem":"npm","name":"@orpc/openapi","purl":"pkg:npm/%40orpc/openapi","ranges":["<1.13.9"],"fixed":["1.13.9"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}