Auth bypass in Parse-Community Parse-Server
CVE-2026-119571
Parse Server from 9.7.0 before 9.10.5-alpha.10 contains an authorization flaw that applies _Installation updates addressed by object ID to the installation named in the X-Parse-Installation-Id header. When protectedFieldsTriggerExempt is enabled, attackers knowing another installation's object ID can make a beforeSave trigger process that installation's protected fields while writing elsewhere.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/parse-community/parse-server/security/advisories/GHSA-8j8q-73xx-w3m4 (vendor-advisory)
- www.vulncheck.com/advisories/parse-server-9.7.0-before-9.10.5-alpha.10-installa… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-119571?
- CVE-2026-119571 is a low-severity vulnerability in Parse-Community Parse-Server, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 3.7/10. Published 2026-10-30.
- How severe is CVE-2026-119571?
- Low severity. CVSS v3 base score is 3.7 out of 10.