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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-287"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52893.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "9.32"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "73204d4e0a7d77a1b186b3d76e8eaf2f3e7c9fd9"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v9.32",
"range": [
{
"fixed": "d80afc7834cb3da5d8d6441b4c5f44627e219050"
}
],
"source": "REFERENCES_TAG"
}
]
}