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CVE-2026-114516

CVE-2026-114516

validatedZero produced an exploit or a check.

GHSA-mc8w-wjhw-45x5 ↗

check availableZero validated a working check for it.proven exploitableZero has validated a full working exploit.
awaiting cvepublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).−1.9dkevAttacks confirmed in the real world.
npm:etherpad-lite 1.8.14 - 3.3.2
fixed in 3.3.3
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
ETK-2026-2834Zero's internal tracking ID, independent of the CVE number., permanent identifier
pkg:npm/etherpad-lite
cvss9.8cna vendorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
−1.1dTTV
10mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal +0dpublic poc+0dcheck + exploit+0.7d
0
+1d
+2d

description

Affected Etherpad-lite installations on POSIX-like hosts can allow an unauthenticated remote client to read files accessible to the Etherpad process through the static-file handler. Exposed secrets may permit additional administrative or server-level compromise; the attacker needs network access to the Etherpad HTTP service.

mitigation

Upgrade npm package etherpad-lite to version 3.3.3 or later. Until upgraded, limit access to the Etherpad HTTP service to trusted networks and clients.

fixed in 3.3.3

check
available
exploit
yes
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.
deterministic
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.
–
agent run time
10m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
not published yet
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
−1.9d
Δ to kevAttacks confirmed in the real world.
–

outcome

Differential: the exploit fired on the vulnerable build and stayed silent on the patched one.

source signals

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

  1. 2026-10-27 13:03Z
  2. 2026-10-27 13:03Z

this entry in the feed

GET /api/v1/feed/CVE-2026-114516

{
  "etk_id": "ETK-2026-2834",
  "cve_id": "CVE-2026-114516",
  "display_id": "CVE-2026-114516",
  "ghsa_id": "GHSA-mc8w-wjhw-45x5",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Path traversal in Etherpad static-file handler",
  "summary": "Affected Etherpad-lite installations on POSIX-like hosts can allow an unauthenticated remote client to read files accessible to the Etherpad process through the static-file handler. Exposed secrets may permit additional administrative or server-level compromise; the attacker needs network access to the Etherpad HTTP service.",
  "mitigation": "Upgrade npm package etherpad-lite to version 3.3.3 or later. Until upgraded, limit access to the Etherpad HTTP service to trusted networks and clients.",
  "vendor": "npm",
  "product": "npm:etherpad-lite",
  "affected": [
    {
      "affected_notes": [
        "1.8.14 - 3.3.2"
      ],
      "affected_ranges": [],
      "ecosystem": "npm",
      "fixed_versions": [
        "3.3.3"
      ],
      "package_name": "etherpad-lite",
      "purl": "pkg:npm/etherpad-lite"
    }
  ],
  "cwes": [
    22
  ],
  "cvss_score": 9.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": true,
  "pipeline_minutes": 10.388656816666666,
  "t0_at": null,
  "signals": {
    "check": {
      "at": "2026-10-28T06:44:43.629495+00:00",
      "days": -1.1272336137847223,
      "is_lower_bound": true,
      "measured_at": "2026-10-29T09:47:56.787321+00:00",
      "url": null
    },
    "exploit": {
      "at": "2026-10-28T06:44:43.629495+00:00",
      "days": -1.1272336137847223,
      "is_lower_bound": true,
      "measured_at": "2026-10-29T09:47:56.787321+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-10-27T13:03:04+00:00",
      "days": -1.864497844050926,
      "is_lower_bound": true,
      "measured_at": "2026-10-29T09:47:56.787321+00:00",
      "url": "https://github.com/ether/etherpad/security/advisories/GHSA-mc8w-wjhw-45x5"
    },
    "trigger_signal": {
      "at": "2026-10-27T13:03:04+00:00",
      "days": -1.864497844050926,
      "is_lower_bound": true,
      "measured_at": "2026-10-29T09:47:56.787321+00:00",
      "url": "https://github.com/ether/etherpad/security/advisories/GHSA-mc8w-wjhw-45x5"
    }
  }
}

published 2026-10-28 06:34Z
last change 2026-10-29 09:44Z

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