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CVE-2026-118664

CVE-2026-118664

waiting for further signalsZero needs more public information before it can validate it.

GHSA-qr28-fpjm-wq7f ↗EUVD-2026-112471 ↗

no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).+20h04mkevAttacks confirmed in the real world.
npm:decode-uri-component <= 0.5.0
fixed in 0.5.1
ETK-2026-2994Zero's internal tracking ID, independent of the CVE number., permanent identifier
pkg:npm/decode-uri-component
cvss8.2cna vendorCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5h 10msince last run
10mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = cve.org publication
trigger signal (cve.org) +0hpublic poc+20h04mwaiting for further signals+21h53m
0
+6h
+12h
+18h

description

decode-uri-component versions before 0.5.1 can consume excessive CPU when decoding malformed, percent-encoded untrusted input. An unauthenticated attacker may stall a Node.js application's event loop if the application passes sufficiently large attacker-controlled inputs, such as request bodies, to the package directly or through a dependency.

mitigation

Upgrade decode-uri-component to version 0.5.1 or later. Until upgraded, restrict the size of untrusted inputs sent to URI decoding, especially request bodies.

fixed in 0.5.1

check
no
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.
–
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.
2026-10-28 20:37Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
+20h04m
Δ to kevAttacks confirmed in the real world.
–

outcome

No artifact: an exploit or check was attempted but could not be produced at this moment.

source signals

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

  1. 2026-10-28 20:37Z
    ghsa: trigger signal, started the run
    https://github.com/advisories/GHSA-qr28-fpjm-wq7f
  2. 2026-10-28 20:37Z
    public poc, published 2026-10-29 16:41Z
    https://github.com/advisories/GHSA-qr28-fpjm-wq7f
  3. 2026-10-28 20:37Z

this entry in the feed

GET /api/v1/feed/CVE-2026-118664

{
  "etk_id": "ETK-2026-2994",
  "cve_id": "CVE-2026-118664",
  "display_id": "CVE-2026-118664",
  "ghsa_id": "GHSA-qr28-fpjm-wq7f",
  "euvd_id": "EUVD-2026-112471",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Quadratic processing denial of service in decode-uri-component",
  "summary": "decode-uri-component versions before 0.5.1 can consume excessive CPU when decoding malformed, percent-encoded untrusted input. An unauthenticated attacker may stall a Node.js application's event loop if the application passes sufficiently large attacker-controlled inputs, such as request bodies, to the package directly or through a dependency.",
  "mitigation": "Upgrade decode-uri-component to version 0.5.1 or later. Until upgraded, restrict the size of untrusted inputs sent to URI decoding, especially request bodies.",
  "vendor": "npm",
  "product": "npm:decode-uri-component",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 0.5.0"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "0.5.1"
      ],
      "package_name": "decode-uri-component",
      "purl": "pkg:npm/decode-uri-component"
    }
  ],
  "cwes": null,
  "cvss_score": 8.2,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 10.270738383333333,
  "t0_at": "2026-10-28T20:37:19.057000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-10-29T16:41:28+00:00",
      "days": 0.8362146180555555,
      "is_lower_bound": false,
      "measured_at": "2026-10-28T20:37:19.057000+00:00",
      "url": "https://github.com/advisories/GHSA-qr28-fpjm-wq7f"
    },
    "trigger_signal": {
      "at": "2026-10-28T20:37:19.057000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-28T20:37:19.057000+00:00",
      "url": "https://github.com/advisories/GHSA-qr28-fpjm-wq7f"
    }
  }
}

published 2026-10-29 18:19Z
last change 2026-10-29 19:46Z

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