FKIE_CVE-2025-27095

Vulnerability from fkie_nvd - Published: 2025-03-31 16:15 - Updated: 2026-06-17 09:03
Severity
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to 4.8.0 and 3.10.18, an attacker with a low-privileged account can access the Kubernetes session feature and manipulate the kubeconfig file to redirect API requests to an external server controlled by the attacker. This allows the attacker to intercept and capture the Kubernetes cluster token. This can potentially allow unauthorized access to the cluster and compromise its security. This vulnerability is fixed in 4.8.0 and 3.10.18.
References
security-advisories@github.comhttps://github.com/jumpserver/jumpserver/security/advisories/GHSA-5q9w-f4wh-f535Exploit, Vendor Advisory
Impacted products
Vendor Product Version
fit2cloud jumpserver *
fit2cloud jumpserver *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "jumpserver",
          "vendor": "jumpserver",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.10.18"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 4.8.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "00898A84-8155-4B74-A763-1957DC697CE8",
              "versionEndExcluding": "3.10.18",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "12191B20-5A6A-4C39-9E88-33E256B92898",
              "versionEndExcluding": "4.8.0",
              "versionStartIncluding": "4.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to 4.8.0 and 3.10.18, an attacker with a low-privileged account can access the Kubernetes session feature and manipulate the kubeconfig file to redirect API requests to an external server controlled by the attacker. This allows the attacker to intercept and capture the Kubernetes cluster token. This can potentially allow unauthorized access to the cluster and compromise its security. This vulnerability is fixed in 4.8.0 and 3.10.18."
    },
    {
      "lang": "es",
      "value": "JumpServer es un host basti\u00f3n de c\u00f3digo abierto y un sistema de auditor\u00eda de seguridad para operaciones y mantenimiento. En versiones anteriores a la 4.8.0 y la 3.10.18, un atacante con una cuenta con privilegios bajos pod\u00eda acceder a la funci\u00f3n de sesi\u00f3n de Kubernetes y manipular el archivo kubeconfig para redirigir las solicitudes de la API a un servidor externo controlado por el atacante. Esto le permite interceptar y capturar el token del cl\u00faster de Kubernetes. Esto podr\u00eda permitir el acceso no autorizado al cl\u00faster y comprometer su seguridad. Esta vulnerabilidad se corrigi\u00f3 en las versiones 4.8.0 y 3.10.18."
    }
  ],
  "id": "CVE-2025-27095",
  "lastModified": "2026-06-17T09:03:01.380",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-27095",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-03-31T16:29:58.766715Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-03-31T16:15:23.493",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/jumpserver/jumpserver/security/advisories/GHSA-5q9w-f4wh-f535"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-266"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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