SB2026040775 - Protection Mechanism Failure in Parse Server
Published: April 7, 2026
Security Bulletin ID
SB2026040775
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Protection Mechanism Failure (CVE-ID: CVE-2026-30938)
The vulnerability allows a remote attacker to bypass a keyword denylist protection.
The vulnerability exists due to protection mechanism failure in the requestKeywordDenylist keyword scanner when processing request payloads containing a nested object or array before a prohibited keyword. A remote attacker can send a specially crafted request payload to bypass a keyword denylist protection.
The requestKeywordDenylist security control is enabled by default, and custom denylist entries configured by the developer are affected as well.
Remediation
Install update from vendor's website.