CVE-2026-111057

{
  "id": "CVE-2026-111057",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-19T16:17:03.810",
  "lastModified": "2026-10-28T16:17:00.940",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. From 3.0.0 until 3.2.4, a missing comma in BLOCKED_PATTERNS concatenates the /lab and /api/terminals regular-expression literals. Requests to /api/terminals therefore bypass the anonymous endpoint blocklist and reach Jupyter Server's terminal API. An unauthenticated attacker can use the resulting interactive operating-system shell to execute commands and access data available to the Mercury process. This issue is fixed in version 3.2.4."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "mljar",
          "product": "mercury",
          "versions": [
            {
              "version": ">= 3.0.0, < 3.2.4",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 10.0,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-28T15:31:16.899020Z",
          "id": "CVE-2026-111057",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-185"
        },
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/mljar/mercury/commit/8c467129037ee9df269d543ac217ffd33b97bf3f",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/mljar/mercury/releases/tag/v3.2.4",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/mljar/mercury/security/advisories/GHSA-f8c7-rwf9-fmgm",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/mljar/mercury/security/advisories/GHSA-f8c7-rwf9-fmgm",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}