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jupyterlab — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2026-102832

JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.5.7 until 4.5.11 and 4.6.4, the markdownviewer:trust and notebook:trust command-link handlers use tracker.currentWidget to resolve the current Markdown viewer or notebook when the user answers rather than retaining the document whose command button was clicked. If another document becomes current while the prompt is open and the user chooses Trust, JupyterLab marks the second document trusted while leaving the clicked document untrusted. Later command buttons in the incorrectly trusted document run without a prompt, and trusting a notebook marks all cells trusted, saves unsaved edits, and persists the server signature to disk. Applications that bundle JupyterLab, including affected Notebook and JupyterLite releases, inherit the behavior. This issue is fixed in versions 4.5.11 and 4.6.4.

Products
jupyterlab
Affected versions
4.0.11+ds1+~cs11.25.27-7, 4.0.11+ds1+~cs11.25.27-8, 4.0.11+ds1+~cs11.25.27-9, 4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-3, 4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-4
Fixed versions
Not specified
CVEs
CVE-2026-102832
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 01:57 UTC · Revision 1

Source evidence

UBUNTU-CVE-2026-102832

core-osv · Original source

Published 13 Oct 2026, 16:17 UTC

JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.5.7 until 4.5.11 and 4.6.4, the markdownviewer:trust and notebook:trust command-link handlers use tracker.currentWidget to resolve the current Markdown viewer or notebook when the user answers rather than retaining the document whose command button was clicked. If another document becomes current while the prompt is open and the user chooses Trust, JupyterLab marks the second document trusted while leaving the clicked document untrusted. Later command buttons in the incorrectly trusted document run without a prompt, and trusting a notebook marks all cells trusted, saves unsaved edits, and persists the server signature to disk. Applications that bundle JupyterLab, including affected Notebook and JupyterLite releases, inherit the behavior. This issue is fixed in versions 4.5.11 and 4.6.4.

osv:UBUNTU-CVE-2026-102832

jupyterlab

Fixed versions: Not specified

jupyterlab

Fixed versions: Not specified

Complete source record
{
  "id": "0e055a261e8e31e90ca4bc32f7824eae0d0fb4009e2d5ff6023986ab583662e4",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-102832",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-102832",
    "summary": "JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.5.7 until 4.5.11 and 4.6.4, the markdownviewer:trust and notebook:trust command-link handlers use tracker.currentWidget to resolve the current Markdown viewer or notebook when the user answers rather than retaining the document whose command button was clicked. If another document becomes current while the prompt is open and the user chooses Trust, JupyterLab marks the second document trusted while leaving the clicked document untrusted. Later command buttons in the incorrectly trusted document run without a prompt, and trusting a notebook marks all cells trusted, saves unsaved edits, and persists the server signature to disk. Applications that bundle JupyterLab, including affected Notebook and JupyterLite releases, inherit the behavior. This issue is fixed in versions 4.5.11 and 4.6.4.",
    "evidence": "osv:UBUNTU-CVE-2026-102832",
    "products": [
      {
        "name": {
          "value": "jupyterlab",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "4.0.11+ds1+~cs11.25.27-9",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-4",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "jupyterlab",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "4.0.11+ds1+~cs11.25.27-7",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "4.0.11+ds1+~cs11.25.27-8",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "4.0.11+ds1+~cs11.25.27-9",
            "evidence": "/affected/1/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "UBUNTU-CVE-2026-102832",
      "aliases": [
        "UBUNTU-CVE-2026-102832"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "jupyterlab",
            "purl": "pkg:deb/ubuntu/jupyterlab?arch=source&distro=stonking",
            "ecosystem": "Ubuntu:26.10"
          },
          "versions": [
            "4.0.11+ds1+~cs11.25.27-9",
            "4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-3",
            "4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-4"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102832.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "jupyterlab",
                "binary_version": "4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-4"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "jupyterlab",
            "purl": "pkg:deb/ubuntu/jupyterlab?arch=source&distro=resolute",
            "ecosystem": "Ubuntu:26.04:LTS"
          },
          "versions": [
            "4.0.11+ds1+~cs11.25.27-7",
            "4.0.11+ds1+~cs11.25.27-8",
            "4.0.11+ds1+~cs11.25.27-9"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102832.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "jupyterlab",
                "binary_version": "4.0.11+ds1+~cs11.25.27-9"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T12:57:57.017831056Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-102832"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-102832",
        "https://www.cve.org/CVERecord?id=CVE-2026-102832",
        "https://github.com/jupyterlab/jupyterlab/commit/0fc18ab4ef67e431a8f6560e387193baf786c70a",
        "https://github.com/jupyterlab/jupyterlab/commit/b64bc88b8ca034cf158604a5cc48ca9170ea453b",
        "https://github.com/jupyterlab/jupyterlab/commit/f7e5f9803fdf2aaaa0e9bfb9cc73386a8cc5f0b2",
        "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.11",
        "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.4",
        "https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-jwrc-gm9j-263p"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-102832",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 357764,
  "published_at": "2026-10-13T16:17:00+00:00"
}