ETK-2026-3763Zero's internal tracking ID, independent of the CVE number.

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

GHSA-vghh-5rfx-xhq8 ↗

no check availablenot proven exploitable
awaiting cvepublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).−1.2dkevAttacks confirmed in the real world.
go:github.com/canonical/lxd < 0.0.0-20260630083100-c5184be310b1
fixed in 0.0.0-20260630083100-c5184be310b1
ETK-2026-3763Zero's internal tracking ID, independent of the CVE number., no cve assigned
pkg:golang/github.com/canonical/lxd
2h 25msince last run
46mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal +0hpublic poc+0hwaiting for further signals+26h51m
0
+6h
+12h
+18h
+24h
+30h

description

The github.com/canonical/lxd Go module mishandles duplicate rootfs entries in imported container images. An attacker who can import a crafted image and use the stopped-container file interface may read or modify files on the host, potentially enabling command execution.

mitigation

Upgrade github.com/canonical/lxd to 0.0.0-20260630083100-c5184be310b1 or later. Until upgraded, restrict image imports and access to stopped-container file operations to trusted administrators.

fixed in 0.0.0-20260630083100-c5184be310b1

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.
contextual
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
46m
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).
−1.2d
Δ to kevAttacks confirmed in the real world.
–

outcome

Contextual, not validated: no deterministic check could cover this one, and no technique passed our review.

source signals

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

  1. 2026-11-06 19:36Z
    ghsa: trigger signal, started the run
  2. 2026-11-06 19:36Z

this entry in the feed

GET /api/v1/feed/ETK-2026-3763

{
  "etk_id": "ETK-2026-3763",
  "cve_id": null,
  "display_id": "ETK-2026-3763",
  "ghsa_id": "GHSA-vghh-5rfx-xhq8",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Improper rootfs symlink handling in LXD image imports",
  "summary": "The github.com/canonical/lxd Go module mishandles duplicate rootfs entries in imported container images. An attacker who can import a crafted image and use the stopped-container file interface may read or modify files on the host, potentially enabling command execution.",
  "mitigation": "Upgrade github.com/canonical/lxd to 0.0.0-20260630083100-c5184be310b1 or later. Until upgraded, restrict image imports and access to stopped-container file operations to trusted administrators.",
  "vendor": "go",
  "product": "go:github.com/canonical/lxd",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 0.0.0-20260630083100-c5184be310b1"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "0.0.0-20260630083100-c5184be310b1"
      ],
      "package_name": "github.com/canonical/lxd",
      "purl": "pkg:golang/github.com/canonical/lxd"
    }
  ],
  "cwes": null,
  "cvss_score": 9.9,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 46.2133098,
  "t0_at": null,
  "signals": {
    "public_poc": {
      "at": "2026-11-06T19:36:07+00:00",
      "days": -1.2197489650578703,
      "is_lower_bound": true,
      "measured_at": "2026-11-08T00:52:33.348982+00:00",
      "url": "https://github.com/advisories/GHSA-vghh-5rfx-xhq8"
    },
    "trigger_signal": {
      "at": "2026-11-06T19:36:07+00:00",
      "days": -1.2197489650578703,
      "is_lower_bound": true,
      "measured_at": "2026-11-08T00:52:33.348982+00:00",
      "url": "https://github.com/advisories/GHSA-vghh-5rfx-xhq8"
    }
  }
}

published 2026-11-06 21:32Z
last change 2026-11-08 00:40Z

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