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CVE-2026-111946

CVE-2026-111946

validatedZero produced an exploit or a check.

EUVD-2026-104605 ↗

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).−1.4dkevAttacks confirmed in the real world.
Plack-Middleware-ETag 0.04-0.05
fixed in 0.06
CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere
ETK-2026-2505Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss0.1ethiack provisional
+3.0dTTV
24mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
public poc−1.4dtrigger signal (cve.org) +0dcheck available+3.0dagent stopped
−1d
0
+1d
+2d

description

Plack-Middleware-ETag versions 0.04 through before 0.06 can include file inode numbers in ETag headers. A client can use this metadata to fingerprint the backend or correlate files across URLs when the application serves filehandle responses and file_etag is not configured.

mitigation

Upgrade Plack-Middleware-ETag to version 0.06 or later. Until upgraded, configure file_etag explicitly for filehandle responses to avoid the default ETag construction.

fixed in 0.06

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.
–
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
24m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-19 20:54Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
−1.4d
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. 2026-10-18 11:14Z
  2. 2026-10-19 20:54Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-111946

this entry in the feed

GET /api/v1/feed/CVE-2026-111946

{
  "etk_id": "ETK-2026-2505",
  "cve_id": "CVE-2026-111946",
  "display_id": "CVE-2026-111946",
  "ghsa_id": null,
  "euvd_id": "EUVD-2026-104605",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Inode number disclosure in Plack-Middleware-ETag ETags",
  "summary": "Plack-Middleware-ETag versions 0.04 through before 0.06 can include file inode numbers in ETag headers. A client can use this metadata to fingerprint the backend or correlate files across URLs when the application serves filehandle responses and file_etag is not configured.",
  "mitigation": "Upgrade Plack-Middleware-ETag to version 0.06 or later. Until upgraded, configure file_etag explicitly for filehandle responses to avoid the default ETag construction.",
  "vendor": null,
  "product": "Plack-Middleware-ETag",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "0.04-0.05"
      ],
      "ecosystem": "perl",
      "fixed_versions": [
        "0.06"
      ],
      "package_name": "Plack-Middleware-ETag",
      "purl": null
    }
  ],
  "cwes": [
    497
  ],
  "cvss_score": 0.1,
  "cvss_src": "ethiack_provisional",
  "cvss_vector": null,
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 23.578080183333334,
  "t0_at": "2026-10-19T20:54:56.964000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-22T21:37:54.007096+00:00",
      "days": 3.0298268876851853,
      "is_lower_bound": false,
      "measured_at": "2026-10-19T20:54:56.964000+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-10-18T11:14:19+00:00",
      "days": -1.403217175925926,
      "is_lower_bound": false,
      "measured_at": "2026-10-19T20:54:56.964000+00:00",
      "url": "https://github.com/robrwo/perl-Plack-Middleware-ETag/security/advisories/GHSA-943g-rgq5-6xc8"
    },
    "trigger_signal": {
      "at": "2026-10-19T20:54:56.964000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-19T20:54:56.964000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-111946"
    }
  }
}

published 2026-10-22 21:14Z
last change 2026-10-22 22:09Z

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