CVE-2026-109166

validatedZero produced an exploit or a check.

GHSA-xv2w-mrmf-rf3c ↗EUVD-2026-97372 ↗

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).+0mkevAttacks confirmed in the real world.
dromara lamp-cloud <= 5.10.1
CWE-639 Authorization Bypass Through User-Controlled Key
ETK-2026-1367Zero's internal tracking ID, independent of the CVE number., permanent identifier
+2h17mTTV
58mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal (cve.org) +0hpublic poc+0hcheck available+2h17magent stopped
0
+1h
+2h

description

lamp-cloud through 5.10.1 does not enforce ownership checks when retrieving storage URLs for uploaded files. An authenticated attacker who knows or can supply another user's file identifier may obtain an access URL and read that user's attachments.

mitigation

Upgrade to a vendor release that adds ownership authorization checks when one is available. Until then, restrict access to affected file URL retrieval functionality and enforce server-side ownership checks before returning storage URLs.

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.
yes, low privileges
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
0.24%13th percentile
agent run time
58m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-12 13:10Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
+0m
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. 2026-10-12 13:10Z
    cve_org: trigger signal, started the run
  2. 2026-10-12 14:55Z

this entry in the feed

GET /api/v1/feed/CVE-2026-109166

{
  "etk_id": "ETK-2026-1367",
  "cve_id": "CVE-2026-109166",
  "display_id": "CVE-2026-109166",
  "ghsa_id": "GHSA-xv2w-mrmf-rf3c",
  "euvd_id": "EUVD-2026-97372",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authenticated IDOR in lamp-cloud file URL retrieval",
  "summary": "lamp-cloud through 5.10.1 does not enforce ownership checks when retrieving storage URLs for uploaded files. An authenticated attacker who knows or can supply another user's file identifier may obtain an access URL and read that user's attachments.",
  "mitigation": "Upgrade to a vendor release that adds ownership authorization checks when one is available. Until then, restrict access to affected file URL retrieval functionality and enforce server-side ownership checks before returning storage URLs.",
  "vendor": "dromara",
  "product": "lamp-cloud",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 5.10.1"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "lamp-cloud",
      "purl": null
    }
  ],
  "cwes": [
    639
  ],
  "cvss_score": 7.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
  "epss_score": 0.0024,
  "epss_percentile": 0.1397,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 57.96289835,
  "t0_at": "2026-10-12T13:10:31.628000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-12T15:27:35.982222+00:00",
      "days": 0.09518928497685185,
      "is_lower_bound": false,
      "measured_at": "2026-10-12T13:10:31.628000+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-10-12T13:10:31.628000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-12T13:10:31.628000+00:00",
      "url": "https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/lamp-cloud/poc_findUrlById_url.py"
    },
    "trigger_signal": {
      "at": "2026-10-12T13:10:31.628000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-12T13:10:31.628000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-109166"
    }
  }
}

published 2026-10-12 14:29Z
last change 2026-10-21 09:43Z

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