{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.10.16-lts"
              },
              {
                "fixed": "4.10.16"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "ded38791c2c5513a388ea0ba0a62858b4f5bd118"
            }
          ],
          "repo": "https://github.com/jumpserver/jumpserver",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-26pj-mmxw-w3w7"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-295"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31798.json"
  },
  "details": "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.",
  "id": "CVE-2026-31798",
  "modified": "2026-07-15T01:49:04.102216889Z",
  "published": "2026-03-13T19:15:26.081Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31798.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/jumpserver/jumpserver/security/advisories/GHSA-26pj-mmxw-w3w7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31798"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "JumpServer Improper Certificate Validation in Custom SMS API Client"
}