A vulnerability involving changing the data type of a table column can easily be exploited to cause a backend crash, and in principle might be used to read database content that the user should not be able to access.

Version Information

Affected Version Fixed In
8.2 8.2.2
8.1 8.1.7
8.0 8.0.11

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.