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ETK-2026-2649Zero's internal tracking ID, independent of the CVE number.

ETK-2026-2649Zero's internal tracking ID, independent of the CVE number.

validatedZero produced an exploit or a check.

GHSA-jgh7-p4h3-836h ↗

check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
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.
pip mercury > 3.0, <= 3.2.11
fixed in 3.2.12
CWE-306 Missing Authentication for Critical Function
ETK-2026-2649Zero's internal tracking ID, independent of the CVE number., no cve assigned
pkg:pypi/mercury
cvss9.8cna vendorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
−3h44mTTV
14mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal +0hcheck available+4h11magent stopped
0
+2h
+6h
+8h

description

Mercury standalone versions after 3.0 through 3.2.11 expose Jupyter configuration, settings, export, and terminal-related routes outside intended restrictions. An anonymous user of a public-mode server can alter shared configuration or settings and access notebook exports; if an existing terminal is available, they can connect to it and execute commands. Terminal command execution requires anonymous public-mode access and a pre-existing terminal.

mitigation

Upgrade Mercury to 3.2.12 or later, then restart running servers and replace deployed runtime images. Until upgraded, require authentication and disable terminal access; do not rely only on blocking the terminal REST API.

fixed in 3.2.12

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.
–
agent run time
14m
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

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. 2026-10-26 09:15Z

this entry in the feed

GET /api/v1/feed/ETK-2026-2649

{
  "etk_id": "ETK-2026-2649",
  "cve_id": null,
  "display_id": "ETK-2026-2649",
  "ghsa_id": "GHSA-jgh7-p4h3-836h",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Improper route access control in Mercury standalone mode",
  "summary": "Mercury standalone versions after 3.0 through 3.2.11 expose Jupyter configuration, settings, export, and terminal-related routes outside intended restrictions. An anonymous user of a public-mode server can alter shared configuration or settings and access notebook exports; if an existing terminal is available, they can connect to it and execute commands. Terminal command execution requires anonymous public-mode access and a pre-existing terminal.",
  "mitigation": "Upgrade Mercury to 3.2.12 or later, then restart running servers and replace deployed runtime images. Until upgraded, require authentication and disable terminal access; do not rely only on blocking the terminal REST API.",
  "vendor": "pip",
  "product": "mercury",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "> 3.0, <= 3.2.11"
      ],
      "ecosystem": "pip",
      "fixed_versions": [
        "3.2.12"
      ],
      "package_name": "mercury",
      "purl": "pkg:pypi/mercury"
    }
  ],
  "cwes": [
    306
  ],
  "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": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 14.13306225,
  "t0_at": null,
  "signals": {
    "check": {
      "at": "2026-10-26T13:26:34.856693+00:00",
      "days": -0.15541869732638888,
      "is_lower_bound": true,
      "measured_at": "2026-10-26T17:10:23.115221+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-26T09:15:57+00:00",
      "days": -0.3294679646064815,
      "is_lower_bound": true,
      "measured_at": "2026-10-26T17:10:23.115221+00:00",
      "url": "https://github.com/mljar/mercury/security/advisories/GHSA-jgh7-p4h3-836h"
    }
  }
}

published 2026-10-26 13:12Z
last change 2026-10-26 16:54Z

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