CVE-2022-31131 Information

Description

Nextcloud mail is a Mail app for the Nextcloud home server product. Versions of Nextcloud mail prior to 1.12.2 were found to be missing user account ownership checks when performing tasks related to mail attachments. Attachments may have been exposed to incorrect system users. It is recommended that the Nextcloud Mail app is upgraded to 1.12.2. There are no known workarounds for this issue. Workarounds No workaround available References Pull request HackerOne For more information If you have any questions or comments about this advisory: Create a post in nextcloud/security-advisories Customers: Open a support ticket at support.nextcloud.com

Reference

https://github.com/nextcloud/mail/pull/6600/commits/6dd2527be8d4f6788b449c8a8f5577628b990605 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xhv7-5mhv-299j https://github.com/nextcloud/mail/pull/6600