JupyterLab 4.6.0 Plugin Manager Lock-Rule Enforcement Bypass
JupyterLab (pip package 'jupyterlab') versions >=4.1.0,<=4.5.9 and >=4.6.0,<=4.6.1 contain a plugin manager lock-rule enforcement bypass. Two server-side enforcement gaps allow an authenticated user to circumvent administrator lock rules by making direct requests to the /lab/api/plugins endpoint, enabling or disabling plugins that were locked — including child plugins of multi-plugin extensions and plugins locked via the 'lock all' mechanism. This can impact data integrity and bypass hardening or restrictions (e.g., download/upload limits) implemented through locked plugins. Fixed in versions 4.6.2 and 4.5.10.
CVE-2026-73627
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: cve:CVE-2026-73627
jupyterlab
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
jupyterlab
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- 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.
[
{
"vendor": "jupyterlab",
"product": "jupyterlab",
"versions": [
{
"status": "affected",
"version": "4.6.0",
"versionType": "semver",
"lessThanOrEqual": "4.6.1"
}
],
"packageURL": "pkg:pypi/jupyterlab",
"defaultStatus": "unaffected"
},
{
"vendor": "jupyterlab",
"product": "jupyterlab",
"versions": [
{
"status": "affected",
"version": "4.1.0",
"versionType": "semver",
"lessThanOrEqual": "4.5.9"
}
],
"packageURL": "pkg:pypi/jupyterlab",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-73627
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #4766 · Revision 1
- Added to Heist Feed
- Publisher date