Zammad has an information disclosure in ticket detail view of customers in shared organizations

{
  "id": "cf406a9475bd0978ac27d65e385e0b251f81a4e9eb8fe4ba9a8215589e8ff721",
  "url": "https://osv.dev/vulnerability/CVE-2026-34248",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Zammad has an information disclosure in ticket detail view of customers in shared organizations",
    "summary": "Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, customers in shared organizations (means they can see each other's tickets) could see fields which are not intended for customers - including fields not intended for them at all (e.g. priority, custom ticket attributes for internal purposes). This was the case when a customer opened a ticket from another user of the same shared organization. They are not able to modify these field. This vulnerability is fixed in 7.0.1.",
    "evidence": "osv:CVE-2026-34248",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-34248",
      "aliases": [
        "CVE-2026-34248",
        "GHSA-prww-84vh-w978"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/zammad/zammad",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f3228274c4feefac470d7efad12f240debd678bc"
                },
                {
                  "fixed": "6a5ac49588022c610896a50516dc5876ac1f24b9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "7.0.0"
                      },
                      {
                        "fixed": "7.0.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "cpe": "cpe:2.3:a:zammad:zammad:7.0.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.0.0"
                      },
                      {
                        "last_affected": "7.0.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "7.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34248.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:35.960488589Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34248.json",
        "https://github.com/zammad/zammad/security/advisories/GHSA-prww-84vh-w978",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-34248"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-284"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34248.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-34248",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 503350,
  "published_at": "2026-04-08T18:00:09.868+00:00"
}