ETK-2026-2842Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-2842",
  "cve_id": null,
  "display_id": "ETK-2026-2842",
  "ghsa_id": "GHSA-73h9-c5xp-gfg4",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Session fixation in ep_etherpad-lite SSO authentication",
  "summary": "ep_etherpad-lite before 3.3.3 can retain a pre-authentication session identifier after an SSO login. An attacker who can cause a victim's browser to use a session identifier known to the attacker may reuse it after the victim authenticates, potentially accessing the victim's account or administrator session. Exploitation requires a cookie-injection capability and a victim completing an SSO login.",
  "mitigation": "Upgrade ep_etherpad-lite to version 3.3.3 or later. Until upgraded, restrict SSO access and prevent untrusted parties from setting or injecting application session cookies.",
  "vendor": "npm",
  "product": "npm:ep_etherpad-lite",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 3.3.2"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "3.3.3"
      ],
      "package_name": "ep_etherpad-lite",
      "purl": "pkg:npm/ep_etherpad-lite"
    }
  ],
  "cwes": [
    384
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 23.777526683333335,
  "t0_at": null,
  "signals": {
    "public_poc": {
      "at": "2026-10-27T13:03:08+00:00",
      "days": -0.8727547816898148,
      "is_lower_bound": true,
      "measured_at": "2026-10-28T09:59:54.074815+00:00",
      "url": "https://github.com/ether/etherpad/security/advisories/GHSA-73h9-c5xp-gfg4"
    },
    "trigger_signal": {
      "at": "2026-10-27T13:03:08+00:00",
      "days": -0.8727547816898148,
      "is_lower_bound": true,
      "measured_at": "2026-10-28T09:59:54.074815+00:00",
      "url": "https://github.com/ether/etherpad/security/advisories/GHSA-73h9-c5xp-gfg4"
    }
  }
}