Input validation error in Parse Server - CVE-2026-32770
Published: March 20, 2026
Vulnerability identifier: #VU124168
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-32770
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can subscribe to a LiveQuery with an invalid regular expression pattern and perform a denial of service (DoS) attack.
Affected software
Parse Server
How to mitigate CVE-2026-32770
Install updates from vendor's website.
Parse Server - addressed in versions 8.6.43, 9.6.0 alpha.19