SB2026033041 - Time-of-check Time-of-use (TOCTOU) Race Condition in Parse Server
Published: March 30, 2026
Security Bulletin ID
SB2026033041
CSH Severity
Low
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 vulnerability.
1) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2026-34224)
CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
CVSSv4: CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to compromise the target system.
The vulnerability exists due to a time-of-check, time-of-use (TOCTOU) race condition. A remote administrator can send concurrent login requests via the authData login endpoint and create multiple authenticated sessions.
Remediation
Install update from vendor's website.