GHSA-4263-jgmp-7pf4
Parse Server's Cloud function dispatch crashes server via prototype chain traversal
At a glance
- Published
- Updated
- CVE
- CVE-2026-32886
- Aliases
- BIT-parse-2026-32886
- CVSS_V4
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Description
### Impact 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. ### Patches The fix restricts property lookups during cloud function name resolution to own properties only, preventing prototype chain traversal from stored function handlers. ### Workarounds There is no known workaround.
Affected packages
| Package | Versions |
|---|---|
| npm · parse-server | introduced 9.0.0, fixed 9.6.0-alpha.24 |
| npm · parse-server | introduced 0, fixed 8.6.47 |
References
- https://github.com/parse-community/parse-server/security/advisories/GHSA-4263-jgmp-7pf4 WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-32886 ADVISORY
- https://github.com/parse-community/parse-server/pull/10210 WEB
- https://github.com/parse-community/parse-server/pull/10211 WEB
- https://github.com/parse-community/parse-server PACKAGE
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |