Observable discrepancy in Parse Server - CVE-2026-33429
Published: March 20, 2026
Vulnerability identifier: #VU124159
CSH Severity: Medium
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-33429
CWE-ID: CWE-203
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to observable discrepancy within LiveQuery in the "watch" parameter. A remote attacker can gain access to sensitive information on the target system.
Affected software
Parse Server
How to mitigate CVE-2026-33429
Install updates from vendor's website.
Parse Server - addressed in versions 8.6.54, 9.6.0 alpha.43