CVE-2026-108157

{
  "etk_id": "ETK-2026-1087",
  "cve_id": "CVE-2026-108157",
  "display_id": "CVE-2026-108157",
  "ghsa_id": "GHSA-7p7c-6qwr-q8j7",
  "euvd_id": "EUVD-2026-95905",
  "status": "published",
  "anchor_state": "anchored",
  "title": "OAuth email-linking authentication bypass in Pingvin Share X",
  "summary": "Pingvin Share X versions 0.19.0 through before 1.22.0 are affected by an OAuth/OIDC email-linking authentication flaw. An unauthenticated attacker may take over accounts, including administrator accounts, when automatic account linking is enabled and an identity provider can provide an unverified email identity.",
  "mitigation": "Upgrade Pingvin Share X to version 1.22.0 or later. Until upgrading, disable automatic OAuth/OIDC email linking and avoid providers or configurations that permit unverified email claims.",
  "vendor": "smp46",
  "product": "pingvin-share-x",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0.19.0, < 1.22.0"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "1.22.0"
      ],
      "package_name": "pingvin-share-x",
      "purl": null
    }
  ],
  "cwes": [
    287
  ],
  "cvss_score": 9.2,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
  "epss_score": 0.0054,
  "epss_percentile": 0.4402,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 28.472232916666666,
  "t0_at": "2026-10-09T16:04:41.138000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-09T16:04:41.138000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-09T16:04:41.138000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-108157"
    }
  }
}