Auth bypass in Parse-community Parse-server
CVE-2026-34532
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.67 and 9.7.0-alpha.11, an attacker can bypass Cloud Function validator access controls by appending "prototype.co…
Vulnerability class: Broken Access Control
EPSS: 0.003 (19.8th 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 < 8.6.67, >= 9.0.0, < 9.7.0-alpha.11
- Parseplatform Parse-server — versions 9.7.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, 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-2026-34532?
- CVE-2026-34532 is a critical-severity vulnerability in Parse-community Parse-server, classified under Incorrect Authorization. CVSS score: 9.1/10. Published 2026-03-31.
- How severe is CVE-2026-34532?
- Critical severity. CVSS v3 base score is 9.1 out of 10.