{"id":"CVE-2026-119569","published":"2026-10-30T14:16:45.497","lastModified":"2026-10-30T16:17:46.523","description":"Parse Server before 8.6.108 and 9.0.0 before 9.10.5-alpha.9 contains a prototype pollution vulnerability because user-controlled keys are expanded into objects without own-property checks. Clients with class write access can send dot notation field keys or ACL entry names matching built-in object members to corrupt built-in functions, causing all requests to fail until server restart.","cvssScore":5.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-1321"],"vendors":[],"products":[],"references":[{"url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-rx55-fw4j-pvpx","tags":[]},{"url":"https://www.vulncheck.com/advisories/parse-server-9.0.0-before-9.10.5-alpha.9-prototype-pollution-denial-of-service","tags":[]}],"exploitRefs":[{"url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-rx55-fw4j-pvpx","tags":[]}],"hasPoc":true,"ai":null}