CVE-2026-125336

validatedZero produced an exploit or a check.

GHSA-3cc4-3294-vgjf ↗EUVD-2026-122798 ↗

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.
npm:node-forge <= 1.4.2
fixed in 1.4.3
CWE-295 Improper Certificate Validation
ETK-2026-3431Zero's internal tracking ID, independent of the CVE number., permanent identifier
pkg:npm/node-forge
+39mTTV
9mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = cve.org publication
trigger signal −6.7dcve.org publicationcheck available+0.0dagent stopped
−6d
−4d
−2d

description

node-forge versions before 1.4.3 can accept certificate chains that violate non-critical X.509 name constraints during certificate-chain or forge.tls peer verification. An attacker who controls, or can obtain a certificate from, a constrained CA under a trusted root may impersonate names outside that CA's permitted namespace.

mitigation

Upgrade node-forge to version 1.4.3. Until upgrading, reject chains beneath CAs carrying the X.509 nameConstraints extension in the certificate-verification callback, and review trust anchors separately.

fixed in 1.4.3

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.
–
agent run time
9m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-10 18:52Z
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. 2026-11-04 01:08Z
  2. 2026-11-10 18:52Z

this entry in the feed

GET /api/v1/feed/CVE-2026-125336

{
  "etk_id": "ETK-2026-3431",
  "cve_id": "CVE-2026-125336",
  "display_id": "CVE-2026-125336",
  "ghsa_id": "GHSA-3cc4-3294-vgjf",
  "euvd_id": "EUVD-2026-122798",
  "status": "published",
  "anchor_state": "anchored",
  "title": "X.509 name-constraints validation bypass in node-forge",
  "summary": "node-forge versions before 1.4.3 can accept certificate chains that violate non-critical X.509 name constraints during certificate-chain or forge.tls peer verification. An attacker who controls, or can obtain a certificate from, a constrained CA under a trusted root may impersonate names outside that CA's permitted namespace.",
  "mitigation": "Upgrade node-forge to version 1.4.3. Until upgrading, reject chains beneath CAs carrying the X.509 nameConstraints extension in the certificate-verification callback, and review trust anchors separately.",
  "vendor": "npm",
  "product": "npm:node-forge",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 1.4.2"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "1.4.3"
      ],
      "package_name": "node-forge",
      "purl": "pkg:npm/node-forge"
    }
  ],
  "cwes": [
    295
  ],
  "cvss_score": 7.4,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 9.28869965,
  "t0_at": "2026-11-10T18:52:37.915000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-10T19:32:05.488822+00:00",
      "days": 0.027402474791666666,
      "is_lower_bound": false,
      "measured_at": "2026-11-10T18:52:37.915000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-04T01:08:33+00:00",
      "days": -6.738945775462963,
      "is_lower_bound": false,
      "measured_at": "2026-11-10T18:52:37.915000+00:00",
      "url": "https://github.com/digitalbazaar/forge/security/advisories/GHSA-3cc4-3294-vgjf"
    }
  }
}

Anchor corroborated by the cve.org commit 364e64346c11.

published 2026-11-04 01:49Z
last change 2026-11-11 04:39Z

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