Time-of-check Time-of-use (TOCTOU) Race Condition in Parse Server - CVE-2026-32943
Published: March 20, 2026
Vulnerability identifier: #VU124169
CSH Severity: Low
CVSS v4: 2.3 [CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-32943
CWE-ID: CWE-367
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the password reset mechanism does not enforce single-use guarantees for reset tokens. A remote attacker can race the legitimate user's password reset request, causing both requests to succeed.
Affected software
Parse Server
How to mitigate CVE-2026-32943
Install updates from vendor's website.
Parse Server - addressed in versions 8.6.48, 9.6.0 alpha.28