Auth bypass in Parse-community Parse-server
CVE-2026-33409
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.52 and 9.6.0-alpha.41, an authentication bypass vulnerability allows an attacker to log in as any user who has li…
Vulnerability class: Broken Authentication
EPSS: 0.005 (36.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Parse-community Parse-server — versions < 8.6.52, >= 9.0.0, < 9.6.0-alpha.41
- Parseplatform Parse-server — versions 9.6.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-33409?
- CVE-2026-33409 is a critical-severity vulnerability in Parse-community Parse-server, classified under Improper Authentication. CVSS score: 9.1/10. Published 2026-03-24.
- How severe is CVE-2026-33409?
- Critical severity. CVSS v3 base score is 9.1 out of 10.