Auth bypass in Parse-Community Parse-Server
CVE-2026-116163
Parse Server before 8.6.102 and 9.0.0 before 9.10.5-alpha.2 contains an authentication bypass because the validateSetUp, validateLogin, and validateUpdate methods of custom adapters subclassing AuthAdapter are never called, and an inherited default that accepts any authData is used instead. Attackers can supply arbitrary authData to sign up, link identities, log in as existing users, or skip custom additional authentication factors.
Vulnerability class: Broken Authentication
Published .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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-rq3w-5c6f-p7wr (vendor-advisory)
- www.vulncheck.com/advisories/parse-server-9.0.0-before-9.10.5-alpha.2-authentic… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-116163?
- CVE-2026-116163 is a high-severity vulnerability in Parse-Community Parse-Server, classified under Improper Authentication. CVSS score: 7.4/10. Published 2026-10-25.
- How severe is CVE-2026-116163?
- High severity. CVSS v3 base score is 7.4 out of 10.