FKIE_CVE-2026-31798

Vulnerability from fkie_nvd - Published: 2026-03-13 19:54 - Updated: 2026-03-18 13:07
Severity ?
5.0 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Summary
JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to v4.10.16-lts, JumpServer improperly validates certificates in the Custom SMS API Client. When JumpServer sends MFA/OTP codes via Custom SMS API, an attacker can intercept the request and capture the verification code BEFORE it reaches the user's phone. This vulnerability is fixed in v4.10.16-lts.
References
security-advisories@github.comhttps://github.com/jumpserver/jumpserver/security/advisories/GHSA-26pj-mmxw-w3w7Vendor Advisory
Impacted products
Vendor Product Version
fit2cloud jumpserver *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "43DC809F-FE8B-457E-B4D4-1226A1A8E5F8",
              "versionEndExcluding": "4.10.16",
              "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 v4.10.16-lts, JumpServer improperly validates certificates in the Custom SMS API Client. When JumpServer sends MFA/OTP codes via Custom SMS API, an attacker can intercept the request and capture the verification code BEFORE it reaches the user\u0027s phone. This vulnerability is fixed in v4.10.16-lts."
    },
    {
      "lang": "es",
      "value": "JumpServer es un host basti\u00f3n de c\u00f3digo abierto y un sistema de auditor\u00eda de seguridad de operaci\u00f3n y mantenimiento. Antes de la v4.10.16-lts, JumpServer valida incorrectamente los certificados en el Cliente API de SMS Personalizado. Cuando JumpServer env\u00eda c\u00f3digos MFA/OTP a trav\u00e9s de la API de SMS Personalizado, un atacante puede interceptar la solicitud y capturar el c\u00f3digo de verificaci\u00f3n ANTES de que llegue al tel\u00e9fono del usuario. Esta vulnerabilidad se corrige en la v4.10.16-lts."
    }
  ],
  "id": "CVE-2026-31798",
  "lastModified": "2026-03-18T13:07:58.583",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.0,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 3.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-13T19:54:36.097",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/jumpserver/jumpserver/security/advisories/GHSA-26pj-mmxw-w3w7"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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