CVE-2026-32886

Weakness

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.

Affected products

• parseplatform parse-server

References

• https://github.com/parse-community/parse-server/pull/10210
• https://github.com/parse-community/parse-server/pull/10211
• https://github.com/parse-community/parse-server/security/advisories/GHSA-4263-jgmp-7pf4