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.
History

Sat, 14 Nov 2026 02:15:00 +0000

Type Values Removed Values Added
First Time appeared Diced
Diced zipline
Vendors & Products Diced
Diced zipline

Fri, 13 Nov 2026 09:45:00 +0000

Type Values Removed Values Added
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.
Title Zipline through 4.4.0 WebAuthn Authentication Bypass via Passkey Login
Weaknesses CWE-347
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-11-13T09:34:30.285Z

Updated: 2026-11-13T18:37:27.779Z

Reserved: 2026-11-11T22:57:48.492Z

Link: CVE-2026-126952

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-13T10:18:02.590

Modified: 2026-11-13T19:19:27.113

Link: CVE-2026-126952

cve-icon Redhat

No data.