CVE-2026-66566

validatedZero produced an exploit or a check.

GHSA-x2pv-34vv-36qv ↗EUVD-2026-96520 ↗

check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
Elated-Themes Ambient >= n/a, <= 1.7
ETK-2026-1202Zero's internal tracking ID, independent of the CVE number., permanent identifier
+6h56mTTV
24mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = cve.org publication
trigger signal (cve.org) +0hcheck available+6h56magent stopped
0
+2h
+4h
+6h

description

Ambient versions 1.7 and earlier are affected by a local file inclusion flaw. An attacker who can reach an affected deployment may access locally stored files without authenticating.

mitigation

Remove or restrict public access to Ambient 1.7 and earlier, and upgrade to a vendor-supported release after confirming it addresses this issue. No fixed version is stated in the available evidence.

check
available
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
contextual
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
0.28%19th percentile
agent run time
24m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-10 19:36Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
–
Δ to kevAttacks confirmed in the real world.
–

outcome

Contextual check: a technique exists and was validated, but no deterministic check could cover this one.

source signals

Public signals that triggered or updated the pipeline. These are inputs for the deltas above.

  1. 2026-10-10 19:36Z
    ghsa: trigger signal, started the run
  2. 2026-10-10 19:36Z

this entry in the feed

GET /api/v1/feed/CVE-2026-66566

{
  "etk_id": "ETK-2026-1202",
  "cve_id": "CVE-2026-66566",
  "display_id": "CVE-2026-66566",
  "ghsa_id": "GHSA-x2pv-34vv-36qv",
  "euvd_id": "EUVD-2026-96520",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unauthenticated local file inclusion in Ambient",
  "summary": "Ambient versions 1.7 and earlier are affected by a local file inclusion flaw. An attacker who can reach an affected deployment may access locally stored files without authenticating.",
  "mitigation": "Remove or restrict public access to Ambient 1.7 and earlier, and upgrade to a vendor-supported release after confirming it addresses this issue. No fixed version is stated in the available evidence.",
  "vendor": "Elated-Themes",
  "product": "Ambient",
  "affected": [
    {
      "affected_notes": [
        ">= n/a, <= 1.7"
      ],
      "affected_ranges": [],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Ambient",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 8.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.0028,
  "epss_percentile": 0.1951,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 24.461576666666666,
  "t0_at": "2026-10-10T19:36:12.066000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-11T02:32:35.077959+00:00",
      "days": 0.28915523100694446,
      "is_lower_bound": false,
      "measured_at": "2026-10-10T19:36:12.066000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-10T19:36:12.066000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-10T19:36:12.066000+00:00",
      "url": "https://github.com/advisories/GHSA-x2pv-34vv-36qv"
    }
  }
}

published 2026-10-11 02:08Z
last change 2026-10-21 04:45Z

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