{"id":"CVE-2026-53572","aliases":["GHSA-6w3m-4hhp-775q","GO-2026-5940"],"url":"https://o3.security/vulnerability/CVE-2026-53572","summary":"KEDA: PostgreSQL connection string parameter injection via incomplete whitespace escaping","details":"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.","published":"2026-08-21T20:11:56.479Z","modified":"2026-08-27T11:30:32.325530179Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N"},"epss":{"score":0.00319,"percentile":0.24443,"asOf":"2026-09-07"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/kedacore/keda/v2","fixedVersion":"2.20.0"}],"fix":{"url":"https://github.com/kedacore/keda/commit/703de9dec86cb25b6ecfa4948880a90487344d3f","label":"kedacore/keda@703de9d"},"references":[{"type":"WEB","url":"https://github.com/kedacore/keda/releases/tag/v2.20.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53572.json"},{"type":"ADVISORY","url":"https://github.com/kedacore/keda/security/advisories/GHSA-6w3m-4hhp-775q"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53572"},{"type":"REPORT","url":"https://github.com/kedacore/keda/issues/7784"},{"type":"FIX","url":"https://github.com/kedacore/keda/commit/703de9dec86cb25b6ecfa4948880a90487344d3f"},{"type":"FIX","url":"https://github.com/kedacore/keda/pull/7787"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T11:30:32.325530179Z"}}