CVE-2026-86405

validatedZero produced an exploit or a check.

GHSA-7px9-f7pg-h379 ↗EUVD-2026-95755 ↗

check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
Sipay Electronic Money and Payment Services Inc. PrestaShop Virtual POS Module >= 26.8.1, < 26.9.1
fixed in 26.9.1
CWE-347 Improper Verification of Cryptographic Signature
ETK-2026-1073Zero's internal tracking ID, independent of the CVE number., permanent identifier
+1h48mTTV
1h 18mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = cve.org publication
trigger signal (cve.org) +0hcheck available+1h48magent stopped
0
+1h
+2h

description

PrestaShop Virtual POS Module versions 26.8.1 through versions before 26.9.1 improperly validate cryptographic signatures. An attacker may be able to spoof signatures where the vulnerable validation path is used. The advisory does not provide further preconditions.

mitigation

Upgrade PrestaShop Virtual POS Module to version 26.9.1 or later. Until upgraded, limit exposure of workflows that rely on the module's signature validation.

fixed in 26.9.1

check
available
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.
deterministic
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.
0.20%9th percentile
agent run time
1h 18m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-09 12:52Z
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

Check only, differential: the check fires on the vulnerable build and is silent on the patched one.

source signals

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

  1. 2026-10-09 12:52Z
    cve_org: trigger signal, started the run

this entry in the feed

GET /api/v1/feed/CVE-2026-86405

{
  "etk_id": "ETK-2026-1073",
  "cve_id": "CVE-2026-86405",
  "display_id": "CVE-2026-86405",
  "ghsa_id": "GHSA-7px9-f7pg-h379",
  "euvd_id": "EUVD-2026-95755",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Improper signature verification in PrestaShop Virtual POS Module",
  "summary": "PrestaShop Virtual POS Module versions 26.8.1 through versions before 26.9.1 improperly validate cryptographic signatures. An attacker may be able to spoof signatures where the vulnerable validation path is used. The advisory does not provide further preconditions.",
  "mitigation": "Upgrade PrestaShop Virtual POS Module to version 26.9.1 or later. Until upgraded, limit exposure of workflows that rely on the module's signature validation.",
  "vendor": "Sipay Electronic Money and Payment Services Inc.",
  "product": "PrestaShop Virtual POS Module",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 26.8.1, < 26.9.1"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "26.9.1"
      ],
      "package_name": "PrestaShop Virtual POS Module",
      "purl": null
    }
  ],
  "cwes": [
    347
  ],
  "cvss_score": 9.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.002,
  "epss_percentile": 0.0941,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 78.48354826666667,
  "t0_at": "2026-10-09T12:52:43.902000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-09T14:40:55.555784+00:00",
      "days": 0.07513488175925925,
      "is_lower_bound": false,
      "measured_at": "2026-10-09T12:52:43.902000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-09T12:52:43.902000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-09T12:52:43.902000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-86405"
    }
  }
}

published 2026-10-09 13:39Z
last change 2026-10-21 04:45Z

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