CVE-2026-78661

waiting for further signals

no check availablenot proven exploitable

cve.orgpublic pockev

golang.org/x/net golang.org/x/net/html < 0.62.0

fixed in 0.62.0

ETK-2026-2806, permanent identifier

3h 51msince last run

21mAI analysis

timeline

0 = cve.org publication

trigger signal (cve.org) +0hwaiting for further signals+2h29m

+4h

+6h

+8h

+10h

+12h

description

Versions of golang.org/x/net/html before 0.62.0 can use disproportionate CPU time and memory while parsing certain HTML with many small text segments. An attacker can cause resource exhaustion if an application parses HTML they control or can influence.

mitigation

Upgrade golang.org/x/net/html to version 0.62.0 or later. Until upgrading, restrict or avoid parsing untrusted HTML and enforce input-size and parsing resource limits.

fixed in 0.62.0

check

exploit

automation

–

auth required

–

EPSS

–

agent run time

21m

cve.org record, t = 0

2026-10-27 21:38Z

Δ to public poc

–

Δ to kev

–

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.

2026-10-27 21:38Z
cve_org: trigger signal, started the run
https://www.cve.org/CVERecord?id=CVE-2026-78661

this entry in the feed

GET /api/v1/feed/CVE-2026-78661

{
  "etk_id": "ETK-2026-2806",
  "cve_id": "CVE-2026-78661",
  "display_id": "CVE-2026-78661",
  "ghsa_id": null,
  "euvd_id": null,
  "status": "published",
  "anchor_state": "anchored",
  "title": "Quadratic parsing denial of service in golang.org/x/net/html",
  "summary": "Versions of golang.org/x/net/html before 0.62.0 can use disproportionate CPU time and memory while parsing certain HTML with many small text segments. An attacker can cause resource exhaustion if an application parses HTML they control or can influence.",
  "mitigation": "Upgrade golang.org/x/net/html to version 0.62.0 or later. Until upgrading, restrict or avoid parsing untrusted HTML and enforce input-size and parsing resource limits.",
  "vendor": "golang.org/x/net",
  "product": "golang.org/x/net/html",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 0.62.0"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "0.62.0"
      ],
      "package_name": "golang.org/x/net/html",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": null,
  "cvss_src": null,
  "cvss_vector": null,
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 21.111393,
  "t0_at": "2026-10-27T21:38:56.517000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-27T21:38:56.517000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-27T21:38:56.517000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-78661"
    }
  }
}

published 2026-10-27 23:46Z
last change 2026-10-28 00:40Z

Need the technical details behind an entry?

Every entry here shows what we attempted and when. The technical details, the generated exploit that fired it and the evidence behind the verdict are not public. Tell us about your use case and we’ll get back to you about extended API access.