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CVE-2026-114729

Full vulnerability record from the local CVENow database.

Description

Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a remote content blocking bypass. rcube_washtml inspected the SVG SMIL animation attributes `to`, `from` and values for URIs, but not `by`; so markup such as in an HTML message caused remote content to be loaded without the user's consent, disclosing the client IP address and confirming that the message was opened. Upstream fixed this in the commit “Fix remote-content blocker bypass via SVG SMIL `by` attribute”.

Severity
MEDIUM
CVSS score
5.3 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-10-22 03:16:38.070000
Last modified
2026-11-04 01:53:17.947000
View original CVE JSON
{
  "id": "CVE-2026-114729",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-22T03:16:38.070",
  "lastModified": "2026-11-04T01:53:17.947",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a remote content blocking bypass. rcube_washtml inspected the SVG SMIL animation attributes `to`, `from` and values for URIs, but not `by`; so markup such as in an HTML message caused remote content to be loaded without the user's consent, disclosing the client IP address and confirming that the message was opened. Upstream fixed this in the commit “Fix remote-content blocker bypass via SVG SMIL `by` attribute”."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Roundcube",
          "product": "Webmail",
          "defaultStatus": "unaffected",
          "repo": "https://github.com/roundcube/roundcubemail/",
          "versions": [
            {
              "version": "1.6.0",
              "lessThan": "1.6.20",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "1.7.0",
              "lessThan": "1.7.5",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-26T19:17:32.885920Z",
          "id": "CVE-2026-114729",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-184"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.6.0",
              "versionEndExcluding": "1.6.20",
              "matchCriteriaId": "D91A1C10-A81F-420B-9DE2-078A9BBA469D"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.7.0",
              "versionEndExcluding": "1.7.5",
              "matchCriteriaId": "D41F4166-D4C5-4D1C-94AC-3CF3C27F1319"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://bugs.debian.org/1151279",
      "source": "[email protected]",
      "tags": [
        "Third Party Advisory",
        "Mailing List"
      ]
    },
    {
      "url": "https://github.com/roundcube/roundcubemail/commit/2b6ff79d8b14f94b0ff04765b7f02dbfdfe98efa",
      "source": "[email protected]",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/roundcube/roundcubemail/commit/96d993b4ac57166a094b5774f4761e0b905d9a05",
      "source": "[email protected]",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.20",
      "source": "[email protected]",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.5",
      "source": "[email protected]",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5",
      "source": "[email protected]",
      "tags": [
        "Release Notes"
      ]
    }
  ]
}