ETK-2026-3754Zero's internal tracking ID, independent of the CVE number.
waiting for further signalsZero needs more public information before it can validate it.description
LXD image import handling can follow a top-level templates symlink in a crafted container image. An attacker able to import such an image may read or modify arbitrary host files, potentially leading to command execution. Exploitation requires the ability to import a malicious container image.
mitigation
Upgrade github.com/canonical/lxd to version 0.0.0-20260203144152-d1c8ba15d160 or later. Until upgraded, restrict image-import permissions to trusted administrators and avoid importing untrusted images.
fixed in 0.0.0-20260203144152-d1c8ba15d160
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.
- 2026-11-06 18:53Zghsa: trigger signal, started the run
- 2026-11-06 18:53Z
this entry in the feed
GET /api/v1/feed/ETK-2026-3754
{ "etk_id": "ETK-2026-3754", "cve_id": null, "display_id": "ETK-2026-3754", "ghsa_id": "GHSA-jpf8-86f3-wp38", "euvd_id": null, "status": "published", "anchor_state": "awaiting_cve", "title": "LXD image import symlink traversal", "summary": "LXD image import handling can follow a top-level templates symlink in a crafted container image. An attacker able to import such an image may read or modify arbitrary host files, potentially leading to command execution. Exploitation requires the ability to import a malicious container image.", "mitigation": "Upgrade github.com/canonical/lxd to version 0.0.0-20260203144152-d1c8ba15d160 or later. Until upgraded, restrict image-import permissions to trusted administrators and avoid importing untrusted images.", "vendor": "go", "product": "go:github.com/canonical/lxd", "affected": [ { "affected_notes": [], "affected_ranges": [ "< 0.0.0-20260203144152-d1c8ba15d160" ], "ecosystem": "go", "fixed_versions": [ "0.0.0-20260203144152-d1c8ba15d160" ], "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": 38.486324483333334, "t0_at": null, "signals": { "public_poc": { "at": "2026-11-06T18:53:57+00:00", "days": -1.2376750584722223, "is_lower_bound": true, "measured_at": "2026-11-08T00:36:12.184951+00:00", "url": "https://github.com/advisories/GHSA-jpf8-86f3-wp38" }, "trigger_signal": { "at": "2026-11-06T18:53:57+00:00", "days": -1.2376750584722223, "is_lower_bound": true, "measured_at": "2026-11-08T00:36:12.184951+00:00", "url": "https://github.com/advisories/GHSA-jpf8-86f3-wp38" } } }
published 2026-11-06 19:32Z
last change 2026-11-08 00:08Z
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