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OpenAdvisories
High · 8.1 CVE-2026-126952 EUVD-2026-125113GHSA-6rw4-h2xg-jvvp

Zipline through 4.4.0 WebAuthn Authentication Bypass via Passkey Login

Published Nov 13, 2026 · Updated Nov 13, 2026 · Assigned by VulnCheck

Description

Zipline through 4.4.0 contains an authentication bypass vulnerability in the WebAuthn login endpoint that creates sessions for a supplied registered credential ID without verifying the assertion. Attackers who obtain a target's passkey credential ID can impersonate that account without its authenticator, potentially gaining administrative control over SUPERADMIN accounts.

Affected products

VendorProductAffectedFixed
diced zipline ≤ 4.4.0 —

References