Information Exposure Through an Error Message in Parse Server - CVE-2026-30835
Published: April 6, 2026
Vulnerability identifier: #VU124971
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-30835
CWE-ID: CWE-209
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Parse Community
Affected software:
Parse Server
Parse Server
Detailed vulnerability description
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to generation of error messages containing sensitive information in the query execution layer when processing malformed $regex query parameters. A remote attacker can send a specially crafted query request to disclose sensitive information.
The issue leaks database internals such as error messages, error codes, code names, cluster timestamps, and topology details.
How to mitigate CVE-2026-30835
Install security update from vendor's website.