ETK-2026-4135Zero's internal tracking ID, independent of the CVE number.
waiting for further signalsZero needs more public information before it can validate it.description
Nautobot's Jinja2 template sandbox can fail to protect sensitive model fields when templates use named attribute lookups through certain filters or methods. An authenticated user permitted to create or edit user-authored templates may expose another reachable user's password hash or, under the default sensitive-field setting, API token key; a stolen token can enable access as that user.
mitigation
Upgrade Nautobot to 2.4.46 or later, or 3.2.9 or later. Until upgraded, limit user-authored template permissions to trusted administrators, review existing templates for unexpected field-access behavior, and rotate potentially exposed credentials.
fixed in 2.4.46, 3.2.9
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.
- 2026-11-09 16:27Zghsa: trigger signal, started the run
this entry in the feed
GET /api/v1/feed/ETK-2026-4135
{ "etk_id": "ETK-2026-4135", "cve_id": null, "display_id": "ETK-2026-4135", "ghsa_id": "GHSA-w2v9-g37h-x98j", "euvd_id": null, "status": "published", "anchor_state": "awaiting_cve", "title": "Jinja2 sandbox information disclosure in Nautobot", "summary": "Nautobot's Jinja2 template sandbox can fail to protect sensitive model fields when templates use named attribute lookups through certain filters or methods. An authenticated user permitted to create or edit user-authored templates may expose another reachable user's password hash or, under the default sensitive-field setting, API token key; a stolen token can enable access as that user.", "mitigation": "Upgrade Nautobot to 2.4.46 or later, or 3.2.9 or later. Until upgraded, limit user-authored template permissions to trusted administrators, review existing templates for unexpected field-access behavior, and rotate potentially exposed credentials.", "vendor": "pip", "product": "pip:nautobot", "affected": [ { "affected_notes": [], "affected_ranges": [ "<2.4.46" ], "ecosystem": "pip", "fixed_versions": [ "2.4.46" ], "package_name": "nautobot", "purl": "pkg:pypi/nautobot" }, { "affected_notes": [], "affected_ranges": [ ">=3.0.0", "<3.2.9" ], "ecosystem": "pip", "fixed_versions": [ "3.2.9" ], "package_name": "nautobot", "purl": "pkg:pypi/nautobot" } ], "cwes": [ 200 ], "cvss_score": 8.8, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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": 69.99472945, "t0_at": null, "signals": { "trigger_signal": { "at": "2026-11-09T16:27:22+00:00", "days": -1.5414133959606482, "is_lower_bound": true, "measured_at": "2026-11-11T05:27:00.184246+00:00", "url": "https://github.com/nautobot/nautobot/security/advisories/GHSA-w2v9-g37h-x98j" } } }
published 2026-11-11 03:20Z
last change 2026-11-11 05:12Z
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