Incorrect Comparison in Parse Server - CVE-2026-34574
Published: March 30, 2026 / Updated: March 30, 2026
Vulnerability identifier: #VU124674
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-34574
CWE-ID: CWE-697
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to incorrect comparison. A remote user can send a null value in a PUT request to the session update endpoint and bypass the immutability guard on session fields.
Affected software
Parse Server
How to mitigate CVE-2026-34574
Install updates from vendor's website.
Parse Server - addressed in versions 8.6.69, 9.7.0 alpha.14