ETK-2026-2535Zero's internal tracking ID, independent of the CVE number.
validatingZero is analyzing and reversing it now.description
turbohtml versions before 1.14.0 can consume disproportionate CPU while parsing specially structured HTML documents. An unauthenticated attacker may delay or exhaust parsing workers if an application accepts and parses untrusted HTML.
Still under analysis: more detail becomes available as the pipeline runs.
mitigation
Upgrade pip package turbohtml to version 1.14.0 or later. Until upgraded, restrict untrusted HTML parsing and enforce request-size and parsing-resource limits.
fixed in 1.14.0
outcome
Run in progress: no artifact yet.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-10-09 21:11Zghsa: trigger signal, started the run
this entry in the feed
GET /api/v1/feed/ETK-2026-2535
{ "etk_id": "ETK-2026-2535", "cve_id": null, "display_id": "ETK-2026-2535", "ghsa_id": "GHSA-f9gg-xhpx-r5qc", "euvd_id": null, "status": "in_pipeline", "anchor_state": "awaiting_cve", "title": "Quadratic parsing denial of service in turbohtml", "summary": "turbohtml versions before 1.14.0 can consume disproportionate CPU while parsing specially structured HTML documents. An unauthenticated attacker may delay or exhaust parsing workers if an application accepts and parses untrusted HTML.", "mitigation": "Upgrade pip package turbohtml to version 1.14.0 or later. Until upgraded, restrict untrusted HTML parsing and enforce request-size and parsing-resource limits.", "vendor": null, "product": "pip:turbohtml", "affected": [ { "affected_notes": [], "affected_ranges": [ ">= 0.3.0, <= 1.13.1" ], "ecosystem": "pip", "fixed_versions": [ "1.14.0" ], "package_name": "turbohtml", "purl": "pkg:pypi/turbohtml" } ], "cwes": [ 400 ], "cvss_score": 7.5, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "epss_score": null, "epss_percentile": null, "epss_asof": null, "automation": null, "check": false, "check_confidence_basis": null, "exploit": false, "pipeline_minutes": null, "t0_at": null, "signals": { "trigger_signal": { "at": "2026-10-09T21:11:45+00:00", "days": -13.21062056324074, "is_lower_bound": true, "measured_at": "2026-10-23T02:15:02.656421+00:00", "url": "https://github.com/tox-dev/turbohtml/security/advisories/GHSA-f9gg-xhpx-r5qc" } } }
published 2026-10-23 00:36Z
last change 2026-10-23 00:37Z
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