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ETK-2026-1893Zero's internal tracking ID, independent of the CVE number.

ETK-2026-1893Zero's internal tracking ID, independent of the CVE number.

validatedZero produced an exploit or a check.

GHSA-jm28-2xm3-m6m5 ↗

check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
awaiting cvepublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
docker:ghcr.io/sysadminsmedia/docker <= 0.26.2
fixed in 0.27.0
CWE-862 Missing Authorization
ETK-2026-1893Zero's internal tracking ID, independent of the CVE number., no cve assigned
cvss8.1cna vendorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
−3.7dTTV
16mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal +0dcheck available+0.1dagent stopped
0
+1d
+2d
+3d
+4d

description

Homebox deployments using affected container releases allow a group member to perform management actions that should require ownership. An authenticated member may alter group settings, manage membership or invitations, or delete a group and its associated data. Exploitation requires membership in a target group.

mitigation

Update the affected ghcr.io/sysadminsmedia/docker or sysadminsmedia/docker container package to version 0.27.0 or later. Restrict group membership and revoke unneeded invitations until all deployments are updated.

fixed in 0.27.0

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.
yes, low privileges
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
16m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
not published yet
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. 2026-10-17 16:16Z

this entry in the feed

GET /api/v1/feed/ETK-2026-1893

{
  "etk_id": "ETK-2026-1893",
  "cve_id": null,
  "display_id": "ETK-2026-1893",
  "ghsa_id": "GHSA-jm28-2xm3-m6m5",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Improper authorization in Homebox group administration",
  "summary": "Homebox deployments using affected container releases allow a group member to perform management actions that should require ownership. An authenticated member may alter group settings, manage membership or invitations, or delete a group and its associated data. Exploitation requires membership in a target group.",
  "mitigation": "Update the affected `ghcr.io/sysadminsmedia/docker` or `sysadminsmedia/docker` container package to version 0.27.0 or later. Restrict group membership and revoke unneeded invitations until all deployments are updated.",
  "vendor": "docker",
  "product": "docker:ghcr.io/sysadminsmedia/docker",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 0.26.2"
      ],
      "ecosystem": "docker",
      "fixed_versions": [
        "0.27.0"
      ],
      "package_name": "ghcr.io/sysadminsmedia/docker",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 0.26.2"
      ],
      "ecosystem": "docker",
      "fixed_versions": [
        "0.27.0"
      ],
      "package_name": "sysadminsmedia/docker",
      "purl": null
    }
  ],
  "cwes": [
    862
  ],
  "cvss_score": 8.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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": 15.513745233333333,
  "t0_at": null,
  "signals": {
    "check": {
      "at": "2026-10-17T17:48:42.698229+00:00",
      "days": -3.6903844327314816,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T10:22:52.071028+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-17T16:16:56+00:00",
      "days": -3.7541193659375,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T10:22:52.071028+00:00",
      "url": "https://github.com/sysadminsmedia/homebox/security/advisories/GHSA-jm28-2xm3-m6m5"
    }
  }
}

published 2026-10-17 17:33Z
last change 2026-10-21 10:15Z

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