« Volver al listado

CVE-2026-41076

Estado: AplazadaAlta (8.1)—

RT is an open source, enterprise-grade issue and ticket tracking system. Versions 5.0.9 and prior in addition to 6.0.0 through 6.0.2 contain an authentication bypass vulnerability in RT installations that use LDAP/AD for user authentication. Under certain LDAP server configurations, an attacker may be able to authenticate as any LDAP-backed RT user without supplying valid credentials. This issue has been fixed in versions 5.0.10 and 6.0.3. If developers are unable to upgrade immediately, they can temporarily work around this issue by reviewing their LDAP server's authentication policy to ensure it rejects unauthenticated bind attempts. Upgrading RT remains the recommended fix.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad de autenticación en aplicación web expuesta (RT) accesible remotamente sin privilegios (AV:N, PR:N). El bypass de LDAP permite acceso sin credenciales válidas (CWE-287), otorgando identidad de usuario legítimo (T1078). Posterior ejecución de código es probable en sistema de ticketing

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementApplication Developer GuidanceActive Directory ConfigurationVulnerability ScanningUser TrainingUser Account Management

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Bestpractical — RTAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-41076",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-41076",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-27T00:00:00+00:00"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "bestpractical",
          "product": "rt",
          "versions": [
            {
              "status": "affected",
              "version": "< 5.0.10"
            },
            {
              "status": "affected",
              "version": ">= 6.0.0, < 6.0.3"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-05-22T22:16:56.090",
  "references": [
    {
      "url": "https://github.com/bestpractical/rt/releases/tag/rt-5.0.10",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/bestpractical/rt/releases/tag/rt-6.0.3",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/bestpractical/rt/security/advisories/GHSA-3w28-fmcr-mjjx",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "RT is an open source, enterprise-grade issue and ticket tracking system. Versions 5.0.9 and prior in addition to 6.0.0 through 6.0.2 contain an authentication bypass vulnerability in RT installations that use LDAP/AD for user authentication. Under certain LDAP server configurations, an attacker may be able to authenticate as any LDAP-backed RT user without supplying valid credentials.  This issue has been fixed in versions 5.0.10 and 6.0.3. If developers are unable to upgrade immediately, they can temporarily work around this issue by reviewing their LDAP server's authentication policy to ensure it rejects unauthenticated bind attempts. Upgrading RT remains the recommended fix."
    },
    {
      "lang": "es",
      "value": "RT es un sistema de seguimiento de problemas y tickets de código abierto, de nivel empresarial. Las versiones 5.0.9 y anteriores, además de la 6.0.0 hasta la 6.0.2, contienen una vulnerabilidad de omisión de autenticación en instalaciones de RT que utilizan LDAP/AD para la autenticación de usuarios. Bajo ciertas configuraciones de servidor LDAP, un atacante podría autenticarse como cualquier usuario de RT respaldado por LDAP sin proporcionar credenciales válidas. Este problema ha sido solucionado en las versiones 5.0.10 y 6.0.3. Si los desarrolladores no pueden actualizar de inmediato, pueden solucionar temporalmente este problema revisando la política de autenticación de su servidor LDAP para asegurarse de que rechace los intentos de enlace no autenticados. Actualizar RT sigue siendo la solución recomendada."
    }
  ],
  "lastModified": "2026-07-23T11:10:00.120",
  "sourceIdentifier": "security-advisories@github.com"
}