Search
Find a vulnerability
Search criteria
2 vulnerabilities found for notebook by jupyterlab
CVE-2026-102831 (GCVE-0-2026-102831)
Vulnerability from nvd – Published: 2026-09-29 18:58 – Updated: 2026-09-29 18:58
VLAI
EPSS
VEX
Title
JupyterLab: Cross-site scripting (XSS) in JupyterLab via notebook cells pasted from the system clipboard
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.
Severity
8.1 (High)
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/commit/1… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/7… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/c… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
>= 4.5.0, < 4.5.11
Affected: >= 4.6.0, < 4.6.4 |
|
| jupyterlab | notebook |
Affected:
>= 7.5.0, < 7.6.3
|
|
| jupyterlab | jupyterlite-core |
Affected:
>= 0.7.0, < 0.8.4
|
{
"containers": {
"cna": {
"affected": [
{
"product": "jupyterlab",
"vendor": "jupyterlab",
"versions": [
{
"status": "affected",
"version": "\u003e= 4.5.0, \u003c 4.5.11"
},
{
"status": "affected",
"version": "\u003e= 4.6.0, \u003c 4.6.4"
}
]
},
{
"product": "notebook",
"vendor": "jupyterlab",
"versions": [
{
"status": "affected",
"version": "\u003e= 7.5.0, \u003c 7.6.3"
}
]
},
{
"product": "jupyterlite-core",
"vendor": "jupyterlab",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.7.0, \u003c 0.8.4"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-345",
"description": "CWE-345: Insufficient Verification of Data Authenticity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T18:58:03.634Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-6966-vjj6-99xv",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-6966-vjj6-99xv"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/commit/1a10a7da5ff655849b21581c2633b46483ae0be9",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/commit/1a10a7da5ff655849b21581c2633b46483ae0be9"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/commit/7f9f29e29e0c83fb17b0f11da57d06b3c6a40d96",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/commit/7f9f29e29e0c83fb17b0f11da57d06b3c6a40d96"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/commit/cf6e89a8d315c4134cefa50c220bca296da466a7",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/commit/cf6e89a8d315c4134cefa50c220bca296da466a7"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.11",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.11"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.4"
}
],
"source": {
"advisory": "GHSA-6966-vjj6-99xv",
"discovery": "UNKNOWN"
},
"title": "JupyterLab: Cross-site scripting (XSS) in JupyterLab via notebook cells pasted from the system clipboard"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-102831",
"datePublished": "2026-09-29T18:58:03.634Z",
"dateReserved": "2026-09-29T17:25:25.266Z",
"dateUpdated": "2026-09-29T18:58:03.634Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-102831 (GCVE-0-2026-102831)
Vulnerability from cvelistv5 – Published: 2026-09-29 18:58 – Updated: 2026-09-29 18:58
VLAI
EPSS
VEX
Title
JupyterLab: Cross-site scripting (XSS) in JupyterLab via notebook cells pasted from the system clipboard
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.
Severity
8.1 (High)
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/commit/1… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/7… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/c… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
>= 4.5.0, < 4.5.11
Affected: >= 4.6.0, < 4.6.4 |
|
| jupyterlab | notebook |
Affected:
>= 7.5.0, < 7.6.3
|
|
| jupyterlab | jupyterlite-core |
Affected:
>= 0.7.0, < 0.8.4
|
{
"containers": {
"cna": {
"affected": [
{
"product": "jupyterlab",
"vendor": "jupyterlab",
"versions": [
{
"status": "affected",
"version": "\u003e= 4.5.0, \u003c 4.5.11"
},
{
"status": "affected",
"version": "\u003e= 4.6.0, \u003c 4.6.4"
}
]
},
{
"product": "notebook",
"vendor": "jupyterlab",
"versions": [
{
"status": "affected",
"version": "\u003e= 7.5.0, \u003c 7.6.3"
}
]
},
{
"product": "jupyterlite-core",
"vendor": "jupyterlab",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.7.0, \u003c 0.8.4"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-345",
"description": "CWE-345: Insufficient Verification of Data Authenticity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T18:58:03.634Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-6966-vjj6-99xv",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-6966-vjj6-99xv"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/commit/1a10a7da5ff655849b21581c2633b46483ae0be9",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/commit/1a10a7da5ff655849b21581c2633b46483ae0be9"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/commit/7f9f29e29e0c83fb17b0f11da57d06b3c6a40d96",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/commit/7f9f29e29e0c83fb17b0f11da57d06b3c6a40d96"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/commit/cf6e89a8d315c4134cefa50c220bca296da466a7",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/commit/cf6e89a8d315c4134cefa50c220bca296da466a7"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.11",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.11"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.4"
}
],
"source": {
"advisory": "GHSA-6966-vjj6-99xv",
"discovery": "UNKNOWN"
},
"title": "JupyterLab: Cross-site scripting (XSS) in JupyterLab via notebook cells pasted from the system clipboard"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-102831",
"datePublished": "2026-09-29T18:58:03.634Z",
"dateReserved": "2026-09-29T17:25:25.266Z",
"dateUpdated": "2026-09-29T18:58:03.634Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}