SB2026040757 - Observable Response Discrepancy in Parse Server
Published: April 7, 2026
Security Bulletin ID
SB2026040757
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Observable Response Discrepancy (CVE-ID: CVE-2026-31901)
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to observable response discrepancy in the /verificationEmailRequest endpoint when handling email verification requests. A remote attacker can send requests with different email addresses and observe distinct error responses to disclose sensitive information.
Only deployments with email verification enabled (verifyUserEmails: true) are vulnerable.
Remediation
Install update from vendor's website.