{"id":"CVE-2026-32886","aliases":["BIT-parse-2026-32886","GHSA-4263-jgmp-7pf4"],"url":"https://o3.security/vulnerability/CVE-2026-32886","summary":"Parse Server's Cloud function dispatch crashes server via prototype chain traversal","details":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.24 and 8.6.47, remote clients can crash the Parse Server process by calling a cloud function endpoint with a crafted function name that traverses the JavaScript prototype chain of a registered cloud function handler, causing a stack overflow. The fix in versions 9.6.0-alpha.24 and 8.6.47 restricts property lookups during cloud function name resolution to own properties only, preventing prototype chain traversal from stored function handlers. There is no known workaround.","published":"2026-03-18T21:42:27.210Z","modified":"2026-08-12T03:51:24.643399517Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"parse-server","fixedVersion":"9.6.0-alpha.24"},{"ecosystem":"npm","name":"parse-server","fixedVersion":"8.6.47"}],"fix":{"url":"https://github.com/parse-community/parse-server/pull/10210","label":"parse-community/parse-server#10210"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32886.json"},{"type":"ADVISORY","url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-4263-jgmp-7pf4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32886"},{"type":"FIX","url":"https://github.com/parse-community/parse-server/pull/10210"},{"type":"FIX","url":"https://github.com/parse-community/parse-server/pull/10211"},{"type":"PACKAGE","url":"https://github.com/parse-community/parse-server"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:24.643399517Z"}}