{
  "id": "CVE-2026-105689",
  "url": "https://spydr.io/cve/CVE-2026-105689",
  "published": "2026-10-05T20:17:18.397Z",
  "modified": "2026-10-05T20:17:18.873Z",
  "score": 6,
  "severity": "medium",
  "cvss_version": "4.0",
  "vector": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
  "score_source": "github.com",
  "epss": null,
  "epss_percentile": null,
  "exploited": false,
  "kev": null,
  "ssvc_exploitation": null,
  "vendors": [
    "penpot"
  ],
  "products": [
    "penpot"
  ],
  "cwes": [
    "CWE-918"
  ],
  "description": "Penpot is an open-source design and prototyping platform. Prior to 2.18.0, app.util.ssrf/blocked-address? relies on Java InetAddress predicates that do not classify NAT64, 6to4, or Teredo addresses and applies additional CIDR checks only to IPv4 values. Exploitation requires routing through a NAT64 gateway or an attacker-controlled DNS AAAA record; cloud environments with NAT64 gateways are directly exploitable. A user controlling a media import URL, or an administrator controlling a webhook URL, can then supply an IPv6 transition address that embeds a cloud-metadata, loopback, link-local, or private IPv4 target and bypasses the intended SSRF restrictions. Media import can disclose response bodies, while webhook delivery can expose response status as a network-probing side channel. This issue is fixed in version 2.18.0.",
  "status": "Deferred",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": 6,
    "cvss_v31": null,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://github.com/penpot/penpot/commit/326d83e780ae120b45ccd6f3d7bd24922b54461c",
      "tags": []
    },
    {
      "url": "https://github.com/penpot/penpot/releases/tag/2.18.0",
      "tags": []
    },
    {
      "url": "https://github.com/penpot/penpot/security/advisories/GHSA-wxgm-8qjw-x445",
      "tags": []
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105689",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}