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ETK-2026-305

ETK-2026-305Zero's internal tracking ID, independent of the CVE number.

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

GHSA-3mqr-4pjg-jhp4 ↗

no check availablenot proven exploitable
awaiting cvepublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).−20dkevAttacks confirmed in the real world.
pip:turbohtml >= 1.0.0, <= 1.13.0
fixed in 1.13.1
CWE-190 Integer Overflow or Wraparound
ETK-2026-305, no cve assigned
pkg:pypi/turbohtml
cvss7.5cna vendorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
19d 02h 53msince last run
12mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = cve.org, not yet published
trigger signal −20dpublic poc−20dwaiting for further signals−19d
−15d
−10d
−5d
0

description

turbohtml versions before 1.13.1 can overflow memory while processing oversized lengths supplied to the XPath/XSLT str:padding function. An attacker who can cause the application to evaluate a crafted XPath expression or XSLT stylesheet may corrupt the heap and crash the interpreter.

mitigation

Upgrade turbohtml to version 1.13.1 or later. Until upgraded, do not evaluate untrusted XPath expressions or XSLT stylesheets and apply process memory limits.

fixed in 1.13.1

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.
–
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
12m
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).
−20d
Δ to kevAttacks confirmed in the real world.
–

outcome

No artifact: an exploit or check was attempted but could not be produced at this moment.

source signals

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

  1. 2026-10-01 05:52Z
  2. 2026-10-01 05:52Z

this entry in the feed

GET /api/v1/feed/ETK-2026-305

{
  "etk_id": "ETK-2026-305",
  "cve_id": null,
  "display_id": "ETK-2026-305",
  "ghsa_id": "GHSA-3mqr-4pjg-jhp4",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Heap buffer overflow in turbohtml XPath str:padding",
  "summary": "turbohtml versions before 1.13.1 can overflow memory while processing oversized lengths supplied to the XPath/XSLT str:padding function. An attacker who can cause the application to evaluate a crafted XPath expression or XSLT stylesheet may corrupt the heap and crash the interpreter.",
  "mitigation": "Upgrade turbohtml to version 1.13.1 or later. Until upgraded, do not evaluate untrusted XPath expressions or XSLT stylesheets and apply process memory limits.",
  "vendor": "pip",
  "product": "pip:turbohtml",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 1.0.0, <= 1.13.0"
      ],
      "ecosystem": "pip",
      "fixed_versions": [
        "1.13.1"
      ],
      "package_name": "turbohtml",
      "purl": "pkg:pypi/turbohtml"
    }
  ],
  "cwes": [
    190
  ],
  "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": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 11.679052883333334,
  "t0_at": null,
  "signals": {
    "public_poc": {
      "at": "2026-10-01T05:52:23+00:00",
      "days": -20.051406304756945,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T07:06:24.527578+00:00",
      "url": "https://github.com/tox-dev/turbohtml/security/advisories/GHSA-3mqr-4pjg-jhp4"
    },
    "trigger_signal": {
      "at": "2026-10-01T05:52:23+00:00",
      "days": -20.051406304756945,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T07:06:24.527578+00:00",
      "url": "https://github.com/tox-dev/turbohtml/security/advisories/GHSA-3mqr-4pjg-jhp4"
    }
  }
}

published 2026-10-02 05:52Z
last change 2026-10-21 07:05Z

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