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CVE-2026-123270

CVE-2026-123270

validatedZero produced an exploit or a check.

GHSA-h882-2qpw-598h ↗EUVD-2026-120155 ↗

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.
Redpanda Data Connect >= 4.39, <= 4.110
ETK-2026-3981Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss9.8cna vendorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
+56mTTV
9mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = cve.org publication
trigger signal (cve.org) +0mcheck available+56magent stopped
0
+15min
+30min
+45min
+60min

description

Redpanda Connect 4.39 through 4.110 in streams mode can expose a management API without an authentication check. An attacker able to reach that API can submit a pipeline configuration and run code as the Redpanda Connect service account. Releases 4.111 and later do not expose the API by default, but remain at risk if the HTTP management interface is manually enabled.

mitigation

Disable the HTTP management API and prevent untrusted networks from reaching TCP port 4195. Upgrade to 4.111 or later to make the interface opt-in, and only enable it behind appropriately restricted administrative network access.

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.
–
agent run time
9m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-09 17:41Z
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. 2026-11-09 17:41Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-123270

this entry in the feed

GET /api/v1/feed/CVE-2026-123270

{
  "etk_id": "ETK-2026-3981",
  "cve_id": "CVE-2026-123270",
  "display_id": "CVE-2026-123270",
  "ghsa_id": "GHSA-h882-2qpw-598h",
  "euvd_id": "EUVD-2026-120155",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unauthenticated management API code execution in Redpanda Connect",
  "summary": "Redpanda Connect 4.39 through 4.110 in streams mode can expose a management API without an authentication check. An attacker able to reach that API can submit a pipeline configuration and run code as the Redpanda Connect service account. Releases 4.111 and later do not expose the API by default, but remain at risk if the HTTP management interface is manually enabled.",
  "mitigation": "Disable the HTTP management API and prevent untrusted networks from reaching TCP port 4195. Upgrade to 4.111 or later to make the interface opt-in, and only enable it behind appropriately restricted administrative network access.",
  "vendor": "Redpanda Data",
  "product": "Connect",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 4.39, <= 4.110"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Connect",
      "purl": null
    }
  ],
  "cwes": null,
  "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": false,
  "pipeline_minutes": 8.876419783333333,
  "t0_at": "2026-11-09T17:41:34.078000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-09T18:37:06.519723+00:00",
      "days": 0.038569927349537035,
      "is_lower_bound": false,
      "measured_at": "2026-11-09T17:41:34.078000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-09T17:41:34.078000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-09T17:41:34.078000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-123270"
    }
  }
}

published 2026-11-09 18:28Z
last change 2026-11-11 05:00Z

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