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High · 7.5 CVE-2026-48911 EUVD-2026-53397GHSA-47mw-vx77-gwvj

Apache Answer: Unauthenticated OAuth Email-Binding Account Takeover via Existing User Confirmation Flow

Published Aug 5, 2026 · Updated Aug 6, 2026 · Assigned by apache

Description

Insufficient Verification of Data Authenticity vulnerability in Apache Answer.

This issue affects Apache Answer: through 2.0.1.

A missing authorization check in the external-login email binding flow allows unauthenticated attackers to take over arbitrary user accounts by tricking victims into clicking a crafted confirmation link.
Users are recommended to upgrade to version 2.0.2, which fixes the issue.

Affected products

VendorProductAffectedFixed
Apache Software Foundation Apache Answer ≤ 2.0.1 —

References