CVE-2026-101021

validatedZero produced an exploit or a check.

EUVD-2026-102893 ↗

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.
J4Care dcm4chee-arc-light 5.35.1
CWE-407 Inefficient Algorithmic Complexity
ETK-2026-1782Zero's internal tracking ID, independent of the CVE number., permanent identifier
+1h08mTTV
25mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal (cve.org) +0mcheck available+68magent stopped
0
+15min
+30min
+45min
+60min
+75min

description

dcm4chee-arc-light includes multipart input handling with inefficient boundary matching and buffer copying. An attacker able to submit crafted multipart requests may cause excessive CPU or memory consumption. Exploitation requires access to an endpoint that accepts multipart input.

mitigation

Restrict access to multipart-accepting endpoints and enforce request-size and request-time limits where available. Monitor for an upstream update and apply it when a fixed release is published.

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.
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.
0.34%26th percentile
agent run time
25m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-16 14:28Z
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

Check only, differential: the check fires on the vulnerable build and is silent on the patched one.

source signals

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

  1. 2026-10-16 14:28Z
    cve_org: trigger signal, started the run

this entry in the feed

GET /api/v1/feed/CVE-2026-101021

{
  "etk_id": "ETK-2026-1782",
  "cve_id": "CVE-2026-101021",
  "display_id": "CVE-2026-101021",
  "ghsa_id": null,
  "euvd_id": "EUVD-2026-102893",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Inefficient multipart parsing in dcm4chee-arc-light",
  "summary": "dcm4chee-arc-light includes multipart input handling with inefficient boundary matching and buffer copying. An attacker able to submit crafted multipart requests may cause excessive CPU or memory consumption. Exploitation requires access to an endpoint that accepts multipart input.",
  "mitigation": "Restrict access to multipart-accepting endpoints and enforce request-size and request-time limits where available. Monitor for an upstream update and apply it when a fixed release is published.",
  "vendor": "J4Care",
  "product": "dcm4chee-arc-light",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "5.35.1"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "dcm4chee-arc-light",
      "purl": null
    }
  ],
  "cwes": [
    407
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
  "epss_score": 0.0034,
  "epss_percentile": 0.2643,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 25.457899866666665,
  "t0_at": "2026-10-16T14:28:54.992000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-16T15:37:12.877942+00:00",
      "days": 0.04742923543981482,
      "is_lower_bound": false,
      "measured_at": "2026-10-16T14:28:54.992000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-16T14:28:54.992000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-16T14:28:54.992000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-101021"
    }
  }
}

published 2026-10-16 15:11Z
last change 2026-10-21 05:31Z

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