A bug in the handling of SET SESSION AUTHORIZATION can cause a backend crash in Assert enabled builds. This will cause the postmaster to restart all backend, resulting in a denial of service. A valid login is required to exploit this vulnerability.
For more information about PostgreSQL versioning,
please visit the versioning page.
Reporting Security Vulnerabilities
If you wish to report a new security vulnerability in PostgreSQL, please
send an email to
For reporting non-security bugs, please see the Report a Bug page.