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CVE-2026-23511

Estado: AnalizadaMedia (5.3)—

ZITADEL is an open source identity management platform. Prior to 4.9.1 and 3.4.6, a user enumeration vulnerability has been discovered in Zitadel's login interfaces. An unauthenticated attacker can exploit this flaw to confirm the existence of valid user accounts by iterating through usernames and userIDs. This vulnerability is fixed in 4.9.1 and 3.4.6.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Zitadel — Zitadel

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-23511",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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        "ssvcData": {
          "id": "CVE-2026-23511",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-15T19:56:17.482311Z"
        }
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    "cvssMetricV31": [
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          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
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        "exploitabilityScore": 3.9
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  "published": "2026-01-15T20:16:05.167",
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      "url": "https://github.com/zitadel/zitadel/commit/b85ab69e4679b0268e2b0e9b4cd04e934af10dd2",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-204"
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  ],
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    {
      "lang": "en",
      "value": "ZITADEL is an open source identity management platform. Prior to 4.9.1 and 3.4.6, a user enumeration vulnerability has been discovered in Zitadel's login interfaces. An unauthenticated attacker can exploit this flaw to confirm the existence of valid user accounts by iterating through usernames and userIDs. This vulnerability is fixed in 4.9.1 and 3.4.6."
    },
    {
      "lang": "es",
      "value": "ZITADEL es una plataforma de gestión de identidad de código abierto. Antes de 4.9.1 y 3.4.6, se ha descubierto una vulnerabilidad de enumeración de usuarios en las interfaces de inicio de sesión de Zitadel. Un atacante no autenticado puede explotar esta falla para confirmar la existencia de cuentas de usuario válidas al iterar a través de nombres de usuario y userIDs. Esta vulnerabilidad está corregida en 4.9.1 y 3.4.6."
    }
  ],
  "lastModified": "2026-06-17T10:21:42.183",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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