CVE-2026-32886
Description
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.
How to fix
- parseplatform parse-server8.6.47, 9.6.0 or later
- parse-server9.6.0-alpha.24, 8.6.47 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| parseplatform parse-server | v < 8.6.47, 9.0.0 ≤ v < 9.6.0, 9.6.0 | 8.6.47, 9.6.0 |
| parse-servernpm | 9.0.0 ≤ v < 9.6.0-alpha.24, v < 8.6.47 | 9.6.0-alpha.24, 8.6.47 |
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