CVE-2026-52893 - Wekan: OIDC Account Takeover via Unconditional Email-Based Account Merge in onCreateUser hook
CVE ID :CVE-2026-52893
Published : July 15, 2026, 10:17 p.m. | 2 hours, 30 minutes ago
Description :Wekan is open source kanban built with Meteor. Prior to 9.32, the Wekan Accounts.onCreateUser hook in server/models/users.js merges OIDC logins into existing accounts when the OIDC email or username matches an existing Wekan user, without verifying ownership or checking email_verified. An attacker using an OIDC provider account with a victim's email or username can cause Wekan to merge the attacker's OIDC credentials into the victim account and then log in as that account. This issue is fixed in version 9.32.
Severity: 9.2 | CRITICAL
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Published : July 15, 2026, 10:17 p.m. | 2 hours, 30 minutes ago
Description :Wekan is open source kanban built with Meteor. Prior to 9.32, the Wekan Accounts.onCreateUser hook in server/models/users.js merges OIDC logins into existing accounts when the OIDC email or username matches an existing Wekan user, without verifying ownership or checking email_verified. An attacker using an OIDC provider account with a victim's email or username can cause Wekan to merge the attacker's OIDC credentials into the victim account and then log in as that account. This issue is fixed in version 9.32.
Severity: 9.2 | CRITICAL
Visit the link for more details, such as CVSS details, affected products, timeline, and more...