CVE-2026-121414

Medium

Description

Parse Server before 8.6.110 and 9.0.0 before 9.10.6-alpha.2 fails to contain a serialization error when an object update uses a dot notation key targeting a pointer field's object identifier on a class with an afterSave trigger. Attackers, including unauthenticated clients when objects are writable without a session, can send such an update to crash the Node process.

SeverityMedium

CVSS5.9

Exploit probability—

ProductParse-community Parse-server

PublishedNov 3, 2026

First seenNov 4, 2026

Weakness typeCWE-248CWE-248

How to fix

Update

parse-community parse-server9.10.6-alpha.2, 8.6.110 or later

Patches

Vendor advisories

github.com/parse-community/parse-server/security/advisories/GHSA-wc3c-6843-q7mv

Affected products

Product	Affected versions	Fixed in
parse-community parse-server	9.0.0 ≤ v < 9.10.6-alpha.2, v < 8.6.110	9.10.6-alpha.2, 8.6.110

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