aiven-extras is a PostgreSQL extension. This is a privilege escalation vulnerability, allowing elevation to superuser inside PostgreSQL databases that use the aiven-extras package. The vulnerability leverages the format function not being schema-prefixed. Affected users should install 1.1.16 and ensure they run the latest version issuing ALTER EXTENSION aiven_extras UPDATE TO '1.1.16' after installing it. This needs to happen in each database aiven_extras has been installed in.
https://github.com/aiven/aiven-extras/security/advisories/GHSA-33xh-jqgf-6627
https://github.com/aiven/aiven-extras/commit/77b5f19a0c1d196bc741ff5c774f85fe7ca3063b