CVE-2026-121965
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
62/100
Published: 2026-11-04
Modified: 2026-11-04
First seen: 2026-11-04
Status: active
Attack Surface
Network
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
None
S:
X
AT:
Present
VC:
None
VI:
None
VA:
High
Description
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.
Weakness Classification (1)
Affected Software (4)
| Vendor | Product | Version |
|---|---|---|
| parse-community | parse-server | 9.0.0 < 9.10.6-alpha.5 |
| parse-community | parse-server | 0 < 8.6.113 |
| parse-community | parse-server | 9.0.0 < 9.10.6-alpha.5 |
| parse-community | parse-server | 0 < 8.6.113 |
References & Advisories (4)
vendor-advisory
third-party-advisory
patch
issue-tracking
patch
issue-tracking