High
jupyter-notebook, jupyterlab — security advisory
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.
- Products
- jupyter-notebook, 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, 4.2.3-4, 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, 5.1.0-2, 5.2.1-2, 5.2.2-1, 5.2.2-1ubuntu0.1, 5.7.8-1, 6.0.0-1, 6.0.0-2, 6.0.2-1, 6.0.3-1, 6.0.3-2, 6.0.3-2ubuntu0.1, 6.2.0-1, 6.4.12-2.2, 6.4.12-2.2ubuntu1, 6.4.12-2.2ubuntu1+esm1, 6.4.13-5ubuntu0.1, 6.4.5-2, 6.4.5-3, 6.4.5-4, 6.4.8-1, 6.4.8-1ubuntu0.1, 6.4.8-1ubuntu0.1+esm1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-102831
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:57 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-102831
jupyter-notebook
Fixed versions: Not specified
jupyter-notebook
Fixed versions: Not specified
jupyter-notebook
Fixed versions: Not specified
jupyter-notebook
Fixed versions: Not specified
jupyter-notebook
Fixed versions: Not specified
jupyterlab
Fixed versions: Not specified
jupyter-notebook
Fixed versions: Not specified
jupyterlab
Fixed versions: Not specified
Complete source record
{
"id": "2187036ded9b1b4d93c18edb5c709d5e242b23fca017ab1d98fe52d77243783a",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-102831",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-102831",
"summary": "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.",
"evidence": "osv:UBUNTU-CVE-2026-102831",
"products": [
{
"name": {
"value": "jupyter-notebook",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.2.3-4",
"evidence": "/affected/0/versions"
},
{
"value": "5.1.0-2",
"evidence": "/affected/0/versions"
},
{
"value": "5.2.1-2",
"evidence": "/affected/0/versions"
},
{
"value": "5.2.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.2.2-1ubuntu0.1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "jupyter-notebook",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.7.8-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.0-2",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.2-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.3-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.3-2",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.3-2ubuntu0.1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "jupyter-notebook",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.2.0-1",
"evidence": "/affected/2/versions"
},
{
"value": "6.4.5-2",
"evidence": "/affected/2/versions"
},
{
"value": "6.4.5-3",
"evidence": "/affected/2/versions"
},
{
"value": "6.4.5-4",
"evidence": "/affected/2/versions"
},
{
"value": "6.4.8-1",
"evidence": "/affected/2/versions"
},
{
"value": "6.4.8-1ubuntu0.1",
"evidence": "/affected/2/versions"
},
{
"value": "6.4.8-1ubuntu0.1+esm1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "jupyter-notebook",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.4.12-2.2",
"evidence": "/affected/3/versions"
},
{
"value": "6.4.12-2.2ubuntu1",
"evidence": "/affected/3/versions"
},
{
"value": "6.4.12-2.2ubuntu1+esm1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "jupyter-notebook",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.4.13-5ubuntu0.1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "jupyterlab",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.0.11+ds1+~cs11.25.27-9",
"evidence": "/affected/5/versions"
},
{
"value": "4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-3",
"evidence": "/affected/5/versions"
},
{
"value": "4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-4",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "jupyter-notebook",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.4.13-5ubuntu0.1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "jupyterlab",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.0.11+ds1+~cs11.25.27-7",
"evidence": "/affected/7/versions"
},
{
"value": "4.0.11+ds1+~cs11.25.27-8",
"evidence": "/affected/7/versions"
},
{
"value": "4.0.11+ds1+~cs11.25.27-9",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-102831",
"aliases": [
"UBUNTU-CVE-2026-102831"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jupyter-notebook",
"purl": "pkg:deb/ubuntu/jupyter-notebook?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"4.2.3-4",
"5.1.0-2",
"5.2.1-2",
"5.2.2-1",
"5.2.2-1ubuntu0.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102831.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jupyter-notebook",
"binary_version": "5.2.2-1ubuntu0.1"
},
{
"binary_name": "python-notebook",
"binary_version": "5.2.2-1ubuntu0.1"
},
{
"binary_name": "python3-notebook",
"binary_version": "5.2.2-1ubuntu0.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jupyter-notebook",
"purl": "pkg:deb/ubuntu/jupyter-notebook?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"5.7.8-1",
"6.0.0-1",
"6.0.0-2",
"6.0.2-1",
"6.0.3-1",
"6.0.3-2",
"6.0.3-2ubuntu0.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102831.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jupyter-notebook",
"binary_version": "6.0.3-2ubuntu0.1"
},
{
"binary_name": "python3-notebook",
"binary_version": "6.0.3-2ubuntu0.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jupyter-notebook",
"purl": "pkg:deb/ubuntu/jupyter-notebook?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"6.2.0-1",
"6.4.5-2",
"6.4.5-3",
"6.4.5-4",
"6.4.8-1",
"6.4.8-1ubuntu0.1",
"6.4.8-1ubuntu0.1+esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102831.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jupyter-notebook",
"binary_version": "6.4.8-1ubuntu0.1+esm1"
},
{
"binary_name": "python3-notebook",
"binary_version": "6.4.8-1ubuntu0.1+esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jupyter-notebook",
"purl": "pkg:deb/ubuntu/jupyter-notebook?arch=source&distro=esm-apps%2Fnoble",
"ecosystem": "Ubuntu:Pro:24.04:LTS"
},
"versions": [
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"6.4.12-2.2ubuntu1",
"6.4.12-2.2ubuntu1+esm1"
],
"database_specific": {
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},
"ecosystem_specific": {
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},
{
"binary_name": "python3-notebook",
"binary_version": "6.4.12-2.2ubuntu1+esm1"
}
]
}
},
{
"ranges": [
{
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{
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],
"package": {
"name": "jupyter-notebook",
"purl": "pkg:deb/ubuntu/jupyter-notebook?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"6.4.13-5ubuntu0.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102831.json"
},
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"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-2026-102831.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jupyterlab",
"binary_version": "4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-4"
}
]
}
},
{
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{
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{
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}
]
}
],
"package": {
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"purl": "pkg:deb/ubuntu/jupyter-notebook?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"6.4.13-5ubuntu0.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102831.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jupyter-notebook",
"binary_version": "6.4.13-5ubuntu0.1"
},
{
"binary_name": "python3-notebook",
"binary_version": "6.4.13-5ubuntu0.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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}
]
}
],
"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-2026-102831.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jupyterlab",
"binary_version": "4.0.11+ds1+~cs11.25.27-9"
}
]
}
}
],
"modified": "2026-10-17T12:57:56.727172211Z",
"provider": "osv",
"upstream": [
"CVE-2026-102831"
],
"references": [
"https://ubuntu.com/security/CVE-2026-102831",
"https://www.cve.org/CVERecord?id=CVE-2026-102831",
"https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-6966-vjj6-99xv",
"https://github.com/jupyterlab/jupyterlab/commit/1a10a7da5ff655849b21581c2633b46483ae0be9",
"https://github.com/jupyterlab/jupyterlab/commit/7f9f29e29e0c83fb17b0f11da57d06b3c6a40d96",
"https://github.com/jupyterlab/jupyterlab/commit/cf6e89a8d315c4134cefa50c220bca296da466a7",
"https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.11",
"https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.4"
]
},
"related_cves": [
{
"value": "CVE-2026-102831",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 357757,
"published_at": "2026-09-29T19:17:00+00:00"
}