{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": [
              "cpe:2.3:a:jenkins:email_extension:*:*:*:*:*:jenkins:*:*",
              "cpe:2.3:a:jenkins:email_extension:1933.v45cec755423f:*:*:*:*:jenkins:*:*"
            ],
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1925.v1598902b_58dd"
              },
              {
                "introduced": "1933.v45cec755423f"
              },
              {
                "last_affected": "1933.v45cec755423f"
              }
            ],
            "source": [
              "CPE_RANGE",
              "CPE_STRING"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1598902b58ddfa69d5763b62db609f864f57e2d8"
            },
            {
              "introduced": "45cec755423fcd203c6dc643794e6da6b6d66fb9"
            },
            {
              "last_affected": "45cec755423fcd203c6dc643794e6da6b6d66fb9"
            }
          ],
          "repo": "https://github.com/jenkinsci/email-ext-plugin",
          "type": "GIT"
        }
      ],
      "versions": [
        "1933.v45cec755423f"
      ]
    }
  ],
  "database_specific": {},
  "details": "Jenkins Email Extension Plugin 1933.v45cec755423f and earlier allows inlining images as `base64` in email content by setting the `data-inline` attribute, without restrictions on the image URLs that can be inlined, allowing attackers able to control the email content to specify `file:` URLs for images to read arbitrary files from the Jenkins controller filesystem.",
  "id": "CVE-2026-48920",
  "modified": "2026-07-08T05:38:18.690525742Z",
  "published": "2026-05-27T15:16:31.647Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3705"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}