Vulnerability · Published Nov 3, 2026 · Assigned by VulnCheck

CVE-2026-121414Parse Server before 8.6.110 and 9.0.0 before 9.10.6-alpha.2 Denial of Service via afterSave Pointer Update

Medium 5.9

In plain English

A medium-severity security flaw in parse-server from parse-community. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).

Severity (CVSS 3.1)5.9Medium

Exploit odds (30 days)0.3%top 73.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
parse-community	parse-server	9.0.0 – before 9.10.6-alpha.2
parse-community	parse-server	0 – before 8.6.110

Weakness: CWE-248 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References

GitHub Security Advisory (GHSA-wc3c-6843-q7mv) vendor-advisory
https://github.com/parse-community/parse-server/pull/10802 patch, issue-tracking
https://github.com/parse-community/parse-server/pull/10803 patch, issue-tracking
VulnCheck Advisory: Parse Server before 8.6.110 and 9.0.0 before 9.10.6-alpha.2 Denial of Service via afterSave Pointer Update third-party-advisory