Vulnerability Description
KEDA is a Kubernetes-based Event Driven Autoscaling component. Prior to 2.20.0, pkg/scalers/postgresql_scaler.go constructs libpq-style connection strings from tenant-controlled host, port, userName, dbName, sslmode, and password values, while escapePostgreConnectionParameter() only quotes values containing a literal space. Tabs, newlines, carriage returns, form feeds, vertical tabs, quotes, and backslashes can therefore create additional key-value tokens when pgx parses the string. An attacker able to create or modify a TriggerAuthentication or ScaledObject can inject host or sslmode parameters, redirect the database connection to an attacker-controlled server, expose credentials, or disable intended TLS protection. This issue is fixed in version 2.20.0.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/kedacore/keda/commit/703de9dec86cb25b6ecfa4948880a90487344d3f
- https://github.com/kedacore/keda/issues/7784
- https://github.com/kedacore/keda/pull/7787
- https://github.com/kedacore/keda/releases/tag/v2.20.0
- https://github.com/kedacore/keda/security/advisories/GHSA-6w3m-4hhp-775q
FAQ
What is CVE-2026-53572?
CVE-2026-53572 is a vulnerability with a CVSS score of 5.9 (MEDIUM). KEDA is a Kubernetes-based Event Driven Autoscaling component. Prior to 2.20.0, pkg/scalers/postgresql_scaler.go constructs libpq-style connection strings from tenant-controlled host, port, userName, ...
How severe is CVE-2026-53572?
CVE-2026-53572 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53572?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.