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OpenAdvisories
High · 7.4 CVE-2026-116163 EUVD-2026-109424GHSA-f559-fhp5-c24h

Parse Server 9.0.0 before 9.10.5-alpha.2 Authentication Bypass via AuthAdapter Subclasses

Published Oct 25, 2026 · Updated Oct 26, 2026 · Assigned by VulnCheck

Description

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.

Affected products

VendorProductAffectedFixed
parse-community parse-server 9.0.0 – < 9.10.5-alpha.2, < 8.6.102 9.10.5-alpha.2

References