CVE-2026-119569
Medium · 5.3CVSS
5.3
EPSS
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Published
Oct 30, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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