CVE-2026-73417 (GCVE-0-2026-73417)
Vulnerability from cvelistv5
Published
2026-08-13 22:04
Modified
2026-08-14 16:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 3.3.0 until 4.5.10 and 4.6.2, JupyterLab allows notebook settings to be shared and applied through an overrides.json file using the Import button in the Settings Editor. In packages/notebook-extension/schema/tracker.json and packages/notebook-extension/src/index.ts, the sideBySideLeftMarginOverride and sideBySideRightMarginOverride settings are not properly validated before being inserted into style content, allowing a crafted settings file to contain instructions that execute as code instead of only changing display preferences. A user can import the malicious file, or an attacker with access to a shared settings location can plant an overrides.json that is applied automatically. The embedded code runs with the affected user's access and can read or modify notebooks and files and run code through the notebook server, including on a connected kernel. This issue is fixed in versions 4.5.10 and 4.6.2.
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| jupyterlab | jupyterlab |
Version: >= 3.3.0, < 4.5.10 Version: >= 4.6.0, < 4.6.2 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-73417",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-14T16:06:07.478833Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-14T16:06:29.787Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "jupyterlab",
"vendor": "jupyterlab",
"versions": [
{
"status": "affected",
"version": "\u003e= 3.3.0, \u003c 4.5.10"
},
{
"status": "affected",
"version": "\u003e= 4.6.0, \u003c 4.6.2"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 3.3.0 until 4.5.10 and 4.6.2, JupyterLab allows notebook settings to be shared and applied through an overrides.json file using the Import button in the Settings Editor. In packages/notebook-extension/schema/tracker.json and packages/notebook-extension/src/index.ts, the sideBySideLeftMarginOverride and sideBySideRightMarginOverride settings are not properly validated before being inserted into style content, allowing a crafted settings file to contain instructions that execute as code instead of only changing display preferences. A user can import the malicious file, or an attacker with access to a shared settings location can plant an overrides.json that is applied automatically. The embedded code runs with the affected user\u0027s access and can read or modify notebooks and files and run code through the notebook server, including on a connected kernel. This issue is fixed in versions 4.5.10 and 4.6.2."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "LOW",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "ACTIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:L",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
}
}
],
"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-116",
"description": "CWE-116: Improper Encoding or Escaping of Output",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-13T22:04:31.709Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-pppj-hq3g-57pj",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-pppj-hq3g-57pj"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/pull/19184",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/pull/19184"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/pull/19185",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/pull/19185"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/pull/19186",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/pull/19186"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/commit/9365f020baec5221deaf11535ed554c06637c999",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/commit/9365f020baec5221deaf11535ed554c06637c999"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/commit/be9303f5bcd5308eaeae953c5a3c903046682c2c",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/commit/be9303f5bcd5308eaeae953c5a3c903046682c2c"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/commit/f1beab4a2027af4719d6edc07d52d6cf5a39a432",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/commit/f1beab4a2027af4719d6edc07d52d6cf5a39a432"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.10",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.10"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.2"
},
{
"name": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.7.0a1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.7.0a1"
}
],
"source": {
"advisory": "GHSA-pppj-hq3g-57pj",
"discovery": "UNKNOWN"
},
"title": "JupyterLab: Cross-site scripting (XSS) via crafted settings file (`overrides.json`)"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-73417",
"datePublished": "2026-08-13T22:04:31.709Z",
"dateReserved": "2026-08-12T14:32:11.795Z",
"dateUpdated": "2026-08-14T16:06:29.787Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-73417\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-14T16:06:07.478833Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-14T16:06:13.106Z\"}}], \"cna\": {\"title\": \"JupyterLab: Cross-site scripting (XSS) via crafted settings file (`overrides.json`)\", \"source\": {\"advisory\": \"GHSA-pppj-hq3g-57pj\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 8.6, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:L\", \"userInteraction\": \"ACTIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"LOW\", \"vulnAvailabilityImpact\": \"LOW\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"jupyterlab\", \"product\": \"jupyterlab\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 3.3.0, \u003c 4.5.10\"}, {\"status\": \"affected\", \"version\": \"\u003e= 4.6.0, \u003c 4.6.2\"}]}], \"references\": [{\"url\": \"https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-pppj-hq3g-57pj\", \"name\": \"https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-pppj-hq3g-57pj\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/jupyterlab/jupyterlab/pull/19184\", \"name\": \"https://github.com/jupyterlab/jupyterlab/pull/19184\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/jupyterlab/jupyterlab/pull/19185\", \"name\": \"https://github.com/jupyterlab/jupyterlab/pull/19185\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/jupyterlab/jupyterlab/pull/19186\", \"name\": \"https://github.com/jupyterlab/jupyterlab/pull/19186\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/jupyterlab/jupyterlab/commit/9365f020baec5221deaf11535ed554c06637c999\", \"name\": \"https://github.com/jupyterlab/jupyterlab/commit/9365f020baec5221deaf11535ed554c06637c999\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/jupyterlab/jupyterlab/commit/be9303f5bcd5308eaeae953c5a3c903046682c2c\", \"name\": \"https://github.com/jupyterlab/jupyterlab/commit/be9303f5bcd5308eaeae953c5a3c903046682c2c\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/jupyterlab/jupyterlab/commit/f1beab4a2027af4719d6edc07d52d6cf5a39a432\", \"name\": \"https://github.com/jupyterlab/jupyterlab/commit/f1beab4a2027af4719d6edc07d52d6cf5a39a432\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.10\", \"name\": \"https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.10\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.2\", \"name\": \"https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.2\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/jupyterlab/jupyterlab/releases/tag/v4.7.0a1\", \"name\": \"https://github.com/jupyterlab/jupyterlab/releases/tag/v4.7.0a1\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 3.3.0 until 4.5.10 and 4.6.2, JupyterLab allows notebook settings to be shared and applied through an overrides.json file using the Import button in the Settings Editor. In packages/notebook-extension/schema/tracker.json and packages/notebook-extension/src/index.ts, the sideBySideLeftMarginOverride and sideBySideRightMarginOverride settings are not properly validated before being inserted into style content, allowing a crafted settings file to contain instructions that execute as code instead of only changing display preferences. A user can import the malicious file, or an attacker with access to a shared settings location can plant an overrides.json that is applied automatically. The embedded code runs with the affected user\u0027s access and can read or modify notebooks and files and run code through the notebook server, including on a connected kernel. This issue is fixed in versions 4.5.10 and 4.6.2.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-116\", \"description\": \"CWE-116: Improper Encoding or Escaping of Output\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-08-13T22:04:31.709Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-73417\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-14T16:06:29.787Z\", \"dateReserved\": \"2026-08-12T14:32:11.795Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-08-13T22:04:31.709Z\", \"assignerShortName\": \"GitHub_M\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…