FKIE_CVE-2026-53572

Vulnerability from fkie_nvd - Published: 2026-08-21 21:16 - Updated: 2026-10-12 16:10
Severity
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
Summary
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.
References
security-advisories@github.comhttps://github.com/kedacore/keda/commit/703de9dec86cb25b6ecfa4948880a90487344d3f
security-advisories@github.comhttps://github.com/kedacore/keda/issues/7784
security-advisories@github.comhttps://github.com/kedacore/keda/pull/7787
security-advisories@github.comhttps://github.com/kedacore/keda/releases/tag/v2.20.0
security-advisories@github.comhttps://github.com/kedacore/keda/security/advisories/GHSA-6w3m-4hhp-775q
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/kedacore/keda/security/advisories/GHSA-6w3m-4hhp-775q
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "keda",
          "vendor": "kedacore",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.20.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "KEDA es un componente de autoescalado basado en eventos y en Kubernetes. Antes de la versi\u00f3n 2.20.0, pkg/scalers/postgresql_scaler.go construye cadenas de conexi\u00f3n estilo libpq a partir de valores controlados por el inquilino para host, puerto, userName, dbName, sslmode y password, mientras que escapePostgreConnectionParameter() solo entrecomilla los valores que contienen un espacio literal. Las tabulaciones, saltos de l\u00ednea, retornos de carro, avances de p\u00e1gina, tabulaciones verticales, comillas y barras invertidas pueden, por lo tanto, crear tokens clave-valor adicionales cuando pgx analiza la cadena. Un atacante capaz de crear o modificar un TriggerAuthentication o un ScaledObject puede inyectar par\u00e1metros de host o sslmode, redirigir la conexi\u00f3n de la base de datos a un servidor controlado por el atacante, exponer credenciales o deshabilitar la protecci\u00f3n TLS prevista. Este problema est\u00e1 corregido en la versi\u00f3n 2.20.0."
    }
  ],
  "id": "CVE-2026-53572",
  "lastModified": "2026-10-12T16:10:00.220",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 4.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-53572",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-25T17:13:16.119842Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-21T21:16:59.957",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/kedacore/keda/commit/703de9dec86cb25b6ecfa4948880a90487344d3f"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/kedacore/keda/issues/7784"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/kedacore/keda/pull/7787"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/kedacore/keda/releases/tag/v2.20.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/kedacore/keda/security/advisories/GHSA-6w3m-4hhp-775q"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/kedacore/keda/security/advisories/GHSA-6w3m-4hhp-775q"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        },
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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