High

DEBIAN-CVE-2026-102831

Type: advisorySource: OSV1 source record

JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From JupyterLab 4.5.0 until 4.5.11 and 4.6.4, from Notebook 7.5.0 until 7.6.3, and from JupyterLite Core 0.7.0 until 0.8.4, the system clipboard cell-paste path accepts attacker-controlled cell JSON without clearing metadata.trusted. When useSystemClipboardForCells is active and pasteCodeCellsWithoutOutput is disabled, a pasted code cell can mark HTML output as trusted, bypass output sanitization, and execute script in the authenticated JupyterLab origin without executing the cell. Markdown and raw cells are not affected because their output is sanitized. This issue is fixed in JupyterLab 4.5.11 and 4.6.4, Notebook 7.6.3, and JupyterLite Core 0.8.4.

Announced 29 Sept 2026Source revision 1

Original source ↗

DEBIAN-CVE-2026-102831

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-102831

jupyter-notebook

Source reference: /affected/0/package/name

Affected versions: 6.4.12-2.2
Source reference: /affected/0/versions
6.4.13-1
Source reference: /affected/0/versions
6.4.13-2
Source reference: /affected/0/versions
6.4.13-3
Source reference: /affected/0/versions
6.4.13-4
Source reference: /affected/0/versions
6.4.13-5
Source reference: /affected/0/versions
7.0.0-1
Source reference: /affected/0/versions
7.0.0-2
Source reference: /affected/0/versions
7.4.7-1
Source reference: /affected/0/versions
7.4.7-2
Source reference: /affected/0/versions
7.4.7-3
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jupyter-notebook

Source reference: /affected/1/package/name

Affected versions: 6.4.13-5
Source reference: /affected/1/versions
7.0.0-1
Source reference: /affected/1/versions
7.0.0-2
Source reference: /affected/1/versions
7.4.7-1
Source reference: /affected/1/versions
7.4.7-2
Source reference: /affected/1/versions
7.4.7-3
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jupyter-notebook

Source reference: /affected/2/package/name

Affected versions: 6.4.13-5
Source reference: /affected/2/versions
7.0.0-1
Source reference: /affected/2/versions
7.0.0-2
Source reference: /affected/2/versions
7.4.7-1
Source reference: /affected/2/versions
7.4.7-2
Source reference: /affected/2/versions
7.4.7-3
Source reference: /affected/2/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jupyter-notebook",
      "purl": "pkg:deb/debian/jupyter-notebook?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "6.4.12-2.2",
      "6.4.13-1",
      "6.4.13-2",
      "6.4.13-3",
      "6.4.13-4",
      "6.4.13-5",
      "7.0.0-1",
      "7.0.0-2",
      "7.4.7-1",
      "7.4.7-2",
      "7.4.7-3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102831.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jupyter-notebook",
      "purl": "pkg:deb/debian/jupyter-notebook?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "6.4.13-5",
      "7.0.0-1",
      "7.0.0-2",
      "7.4.7-1",
      "7.4.7-2",
      "7.4.7-3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102831.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jupyter-notebook",
      "purl": "pkg:deb/debian/jupyter-notebook?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "6.4.13-5",
      "7.0.0-1",
      "7.0.0-2",
      "7.4.7-1",
      "7.4.7-2",
      "7.4.7-3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102831.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Related CVEs: CVE-2026-102831
Source reference: /upstream

Publisher severity

high

Source reference: /severity/0/score

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2026-102831 · High

jupyterlab, notebook, jupyterlite-core

CVE-2026-102831 · High

jupyterlab, jupyterlab, notebook, jupyterlite, jupyterlite-core

CVE-2026-102831 · High

notebook

Event: #84290 · Revision 1
Added to Heist Feed: Mon, 26 Oct 2026 22:48:30 GMT
Publisher date: Tue, 29 Sep 2026 19:17:25 GMT

Read the original announcement