{"cve":"CVE-2026-34373","nvd":{"published":"2026-03-31T15:16:19.060","modified":"2026-07-24T21:10:00.143","status":"Analyzed","description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.66 and 9.7.0-alpha.10, the GraphQL API endpoint does not respect the allowOrigin server option and unconditionally allows cross-origin requests from any website. This bypasses origin restrictions that operators configure to control which websites can interact with the Parse Server API. The REST API correctly enforces the configured allowOrigin restriction. This issue has been patched in versions 8.6.66 and 9.7.0-alpha.10.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N","score":5.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-346"],"references":["https://github.com/parse-community/parse-server/commit/0347641507891d0013ec57f7c10f012064f41263","https://github.com/parse-community/parse-server/commit/4dd0d3d8be1c39664c74ad10bb0abaa76bc41203","https://github.com/parse-community/parse-server/pull/10334","https://github.com/parse-community/parse-server/pull/10335","https://github.com/parse-community/parse-server/security/advisories/GHSA-q3p6-g7c4-829c"],"products":["parseplatform:parse-server"],"source":"nvd","synced_at":"2026-10-19T22:28:18.033120106+00:00"},"epss":{"cve":"CVE-2026-34373","score":0.00205,"percentile":0.10547,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-q3p6-g7c4-829c","url":"https://osv.dev/vulnerability/GHSA-q3p6-g7c4-829c","summary":"GraphQL API endpoint ignores CORS origin restriction","modified":"2026-04-06T15:27:10.053932311Z","packages":[{"ecosystem":"npm","name":"parse-server","purl":"pkg:npm/parse-server","ranges":[">=9.0.0 <9.7.0-alpha.10"],"fixed":["9.7.0-alpha.10"]},{"ecosystem":"npm","name":"parse-server","purl":"pkg:npm/parse-server","ranges":[">=3.5.0 <8.6.66"],"fixed":["8.6.66"]}]}],"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."]}