mrtg: Fix of CVE-2026-72694

{
  "id": "f2cbebaff18049b03cae34a1636be8f287a7338915b4f237c76db917b614355a",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1788267640",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "mrtg: Fix of CVE-2026-72694",
    "summary": "- CVE-2026-72694: refuse a symbolic link at the pid file path, create the file with O_CREAT|O_EXCL and chown the open handle rather than the path. Started as root in daemon mode, mrtg created and chowned the pid file before dropping privileges, so a pre-placed symlink could have root chown an arbitrary file to the daemon user.",
    "evidence": "osv:CLSA-2026-1788267640",
    "products": [
      {
        "name": {
          "value": "mrtg",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.17.7-11.el9_6.tuxcare.els1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1788267640",
      "aliases": [
        "CLSA-2026-1788267640"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.17.7-11.el9_6.tuxcare.els1"
                }
              ]
            }
          ],
          "package": {
            "name": "mrtg",
            "purl": "pkg:rpm/tuxcare/mrtg?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788267640.json"
          }
        }
      ],
      "modified": "2026-10-26T09:31:30.960231572Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-72694"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1788267640.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-72694"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-72694",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 447720,
  "published_at": "2026-09-01T14:30:57+00:00"
}