CVE-2026-121965
Parse Server before 8.6.113 and 9.10.6-alpha.5 Prototype Pollution via Dot Notation Key
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
Parse Server before 8.6.113 and 9.0.0 before 9.10.6-alpha.5 contains a prototype pollution vulnerability when building objects for Cloud Code triggers and LiveQuery, where a dot notation key whose intermediate segment resolves through an inherited member writes onto a process-wide built-in. Clients with write access to an object in a class with a trigger or LiveQuery can corrupt a built-in function, making unrelated requests fail until restart and denying service to all clients and hosted applications.
| CWE | CWE-1321 |
| Vendor | parse-community |
| Product | parse-server |
| Published | Nov 4, 2026 |
| Last Updated | Nov 4, 2026 |
Stay Ahead of the Next One
Get instant alerts for parse-community parse-server
Be the first to know when new medium vulnerabilities affecting parse-community parse-server are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
parse-community / parse-server
9.0.0 < 9.10.6-alpha.5
parse-community / parse-server
0 < 8.6.113
References
github.com: https://github.com/parse-community/parse-server/security/advisories/GHSA-95hp-82c6-25q5 github.com: https://github.com/parse-community/parse-server/pull/10810 github.com: https://github.com/parse-community/parse-server/pull/10811 vulncheck.com: https://www.vulncheck.com/advisories/parse-server-before-8.6.113-and-9.10.6-alpha.5-prototype-pollution-via-dot-notation-key
Credits
mtrezza