{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.2.5"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "67b684cd0c743a4f880f1a7a500bb43c8f3e7da8"
            }
          ],
          "repo": "https://github.com/safing/portmaster",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-306"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111664.json"
  },
  "details": "Safing Portmaster before 2.2.5 contains a missing authorization vulnerability that allows unprivileged local processes to force updates by calling the POST /api/v1/updates/from-url endpoint registered with api.PermitAnyone. Attackers can supply an attacker-controlled index URL that bypasses version checks and auto-apply settings, installing older Safing-signed releases carrying previously fixed vulnerabilities.",
  "id": "CVE-2026-111664",
  "modified": "2026-10-17T02:30:47.830416824Z",
  "published": "2026-10-16T17:39:27.588Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111664.json"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/safing/portmaster"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/safing/portmaster/blob/v2.2.3/service/core/api.go#L145-L159"
    },
    {
      "type": "FIX",
      "url": "https://github.com/safing/portmaster/commit/f943e1eaf98f45bc48490bf288e1d63c04929ae0"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/safing/portmaster/issues/2292"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/safing/portmaster/releases/tag/v2.2.5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111664"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/safing-portmaster-before-2.2.5-unauthenticated-forced-downgrade-via-api-v1-updates-from-url"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Safing Portmaster before 2.2.5 Unauthenticated Forced Downgrade via /api/v1/updates/from-url"
}