{"cve":"CVE-2026-30229","nvd":{"published":"2026-03-06T21:16:16.920","modified":"2026-06-17T10:32:31.650","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 8.6.6 and 9.5.0-alpha.4, the readOnlyMasterKey can call POST /loginAs to obtain a valid session token for any user. This allows a read-only credential to impersonate arbitrary users with full read and write access to their data. Any Parse Server deployment that uses readOnlyMasterKey is affected. This issue has been patched in versions 8.6.6 and 9.5.0-alpha.4.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.5},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","score":7.2},"cwes":["CWE-863"],"references":["https://github.com/parse-community/parse-server/releases/tag/8.6.6","https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.4","https://github.com/parse-community/parse-server/security/advisories/GHSA-79wj-8rqv-jvp5"],"products":["parseplatform:parse-server"],"source":"nvd","synced_at":"2026-10-19T22:25:53.701907451+00:00"},"epss":{"cve":"CVE-2026-30229","score":0.00403,"percentile":0.3462,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-79wj-8rqv-jvp5","url":"https://osv.dev/vulnerability/GHSA-79wj-8rqv-jvp5","summary":"parse-server's endpoint `/loginAs` allows `readOnlyMasterKey` to gain full read and write access as any user","modified":"2026-03-16T03:02:46.890670Z","packages":[{"ecosystem":"npm","name":"parse-server","purl":"pkg:npm/parse-server","ranges":["<8.6.6"],"fixed":["8.6.6"]},{"ecosystem":"npm","name":"parse-server","purl":"pkg:npm/parse-server","ranges":[">=9.0.0 <9.5.0-alpha.4"],"fixed":["9.5.0-alpha.4"]}]}],"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."]}