{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:6"
          ],
          "defaultStatus": "unknown",
          "packageName": "evolution",
          "product": "Red Hat Enterprise Linux 6",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7"
          ],
          "defaultStatus": "affected",
          "packageName": "evolution",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:8"
          ],
          "defaultStatus": "affected",
          "packageName": "evolution",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:9"
          ],
          "defaultStatus": "affected",
          "packageName": "evolution",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Red Hat would like to thank Jurre van Bergen for reporting this issue."
        }
      ],
      "datePublic": "2026-09-10T11:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in Evolution. A remote attacker can exploit this vulnerability by sending a specially crafted HTML email containing a spoofed vCard control. When a victim clicks on this control, Evolution\u0027s trusted JavaScript handler incorrectly assigns an attacker-controlled JavaScript URL to an iframe\u0027s source. This action leads to arbitrary JavaScript execution within the mail-viewing context, effectively bypassing the security measures designed to prevent script execution in email content."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Moderate"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-84",
              "description": "Improper Neutralization of Encoded URI Schemes in a Web Page",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-10T11:24:54.094Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-88859"
        },
        {
          "name": "RHBZ#2531401",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2531401"
        },
        {
          "url": "https://gitlab.gnome.org/GNOME/evolution/-/work_items/3388"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-10T10:44:06.078Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-09-10T11:00:00.000Z",
          "value": "Made public."
        }
      ],
      "title": "Evolution: evolution: javascript execution via spoofed vcard control bypasses mail script-markup restriction",
      "workarounds": [
        {
          "lang": "en",
          "value": "To mitigate this issue, users can disable JavaScript execution for HTML mail in Evolution. This can be done through the Evolution preferences or by using `gsettings`. Disabling JavaScript may affect the rendering and functionality of some legitimate HTML emails.\n\nTo disable JavaScript via `gsettings`, execute the following command:\n`gsettings set org.gnome.evolution.mail enable-javascript false`\n\nTo revert this change, execute:\n`gsettings set org.gnome.evolution.mail enable-javascript true`\n\nNote that changes to `gsettings` take effect immediately, but Evolution may need to be restarted for the setting to be fully applied to already open mail views."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-84: Improper Neutralization of Encoded URI Schemes in a Web Page"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-88859",
    "datePublished": "2026-09-10T11:24:54.094Z",
    "dateReserved": "2026-09-10T10:42:51.932Z",
    "dateUpdated": "2026-09-10T11:24:54.094Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}