CVE-2026-102657

{
  "etk_id": "ETK-2026-3762",
  "cve_id": "CVE-2026-102657",
  "display_id": "CVE-2026-102657",
  "ghsa_id": "GHSA-g3c2-rjq2-c763",
  "euvd_id": "EUVD-2026-118494",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Path traversal in esm.sh web.NewHandler",
  "summary": "esm.sh versions before 137_7 are affected in the web.NewHandler static file server. An unauthenticated remote attacker can disclose files outside the configured application directory if the server process can read them; Dev mode does not need to be enabled.",
  "mitigation": "Upgrade esm.sh to version 137_7 or later. Restrict network access to affected static-file endpoints until the upgrade is complete.",
  "vendor": "esm-dev",
  "product": "esm.sh",
  "affected": [
    {
      "affected_notes": [
        "commit 48d76b947d1f3185b3a7a9af4cdcaf02c263d938",
        "web package version v0.1.0 as present in web/release.go"
      ],
      "affected_ranges": [],
      "ecosystem": "go",
      "fixed_versions": [],
      "package_name": "github.com/esm-dev/esm.sh/web",
      "purl": "pkg:golang/github.com/esm-dev/esm.sh/web"
    }
  ],
  "cwes": [
    22
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 8.36662315,
  "t0_at": "2026-11-06T20:49:28.708000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-06T20:49:28.708000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-06T20:49:28.708000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-102657"
    }
  }
}