ETK-2026-3457Zero's internal tracking ID, independent of the CVE number.

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

GHSA-wxp2-jvxp-88hw ↗

no check availablenot proven exploitable
awaiting cvepublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
go:github.com/gopacket/gopacket <= 1.7.4
fixed in 1.7.5
CWE-401 Missing Release of Memory after Effective Lifetime
ETK-2026-3457Zero's internal tracking ID, independent of the CVE number., no cve assigned
pkg:golang/github.com/gopacket/gopacket
3h 17msince last run
7mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
waiting for further signals−95mtrigger signal +0m
+30min
+60min
+90min

description

gopacket versions before 1.7.5 can retain decoder data across packets when applications reuse layers through DecodingLayerParser. An attacker able to send traffic observed by a long-running affected parser may increase process memory use and cause later packets to be reported with stale fields; fresh-layer decoding is not affected.

mitigation

Upgrade github.com/gopacket/gopacket to version 1.7.5 or later. Until upgraded, use gopacket.NewPacket or create new layer instances for each packet rather than reusing decoder layers.

fixed in 1.7.5

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.
contextual
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
7m
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).
–
Δ to kevAttacks confirmed in the real world.
–

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.

  1. 2026-11-04 05:38Z

this entry in the feed

GET /api/v1/feed/ETK-2026-3457

{
  "etk_id": "ETK-2026-3457",
  "cve_id": null,
  "display_id": "ETK-2026-3457",
  "ghsa_id": "GHSA-wxp2-jvxp-88hw",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Decoder state retention in gopacket",
  "summary": "gopacket versions before 1.7.5 can retain decoder data across packets when applications reuse layers through DecodingLayerParser. An attacker able to send traffic observed by a long-running affected parser may increase process memory use and cause later packets to be reported with stale fields; fresh-layer decoding is not affected.",
  "mitigation": "Upgrade github.com/gopacket/gopacket to version 1.7.5 or later. Until upgraded, use gopacket.NewPacket or create new layer instances for each packet rather than reusing decoder layers.",
  "vendor": "go",
  "product": "go:github.com/gopacket/gopacket",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 1.7.4"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "1.7.5"
      ],
      "package_name": "github.com/gopacket/gopacket",
      "purl": "pkg:golang/github.com/gopacket/gopacket"
    }
  ],
  "cwes": [
    401
  ],
  "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": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 6.939741866666667,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-11-04T05:38:46+00:00",
      "days": -0.07095911771990741,
      "is_lower_bound": true,
      "measured_at": "2026-11-04T07:20:57.010612+00:00",
      "url": "https://github.com/gopacket/gopacket/security/advisories/GHSA-wxp2-jvxp-88hw"
    }
  }
}

published 2026-11-04 05:50Z
last change 2026-11-04 06:57Z

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