CVE-2026-55159

{
  "etk_id": "ETK-2026-2385",
  "cve_id": "CVE-2026-55159",
  "display_id": "CVE-2026-55159",
  "ghsa_id": "GHSA-ggpf-xrph-wg5v",
  "euvd_id": "EUVD-2026-84099",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Cron entry injection in luci-app-adblock-fast",
  "summary": "luci-app-adblock-fast versions before 1.2.4-2 allow line breaks in a cron scheduling RPC argument. An authenticated user granted the luci-app-adblock-fast write ACL can add root-run scheduled tasks, resulting in persistent command execution when cron processes them.",
  "mitigation": "Upgrade luci-app-adblock-fast to version 1.2.4-2 or later. Until upgraded, remove the luci-app-adblock-fast write ACL from delegated accounts that do not require scheduling changes.",
  "vendor": "openwrt",
  "product": "luci-app-adblock-fast",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "master"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "luci-app-adblock-fast",
      "purl": null
    }
  ],
  "cwes": [
    93
  ],
  "cvss_score": 8.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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": 18.885157366666668,
  "t0_at": "2026-09-21T19:24:03.581000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-06-15T01:45:35+00:00",
      "days": -98.73505302083333,
      "is_lower_bound": false,
      "measured_at": "2026-09-21T19:24:03.581000+00:00",
      "url": "https://github.com/openwrt/luci/security/advisories/GHSA-ggpf-xrph-wg5v"
    },
    "trigger_signal": {
      "at": "2026-09-21T19:24:03.581000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-09-21T19:24:03.581000+00:00",
      "url": "https://github.com/openwrt/luci/security/advisories/GHSA-ggpf-xrph-wg5v"
    }
  }
}