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JupyterLab 4.6.0 Plugin Manager Lock-Rule Enforcement Bypass

Type: advisorySource: OSV1 source record

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.

Announced Group revision 1
Original source ↗

BIT-jupyterlab-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: osv:BIT-jupyterlab-2026-73627

jupyterlab

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
4.5.10

Source reference: /affected/0/ranges

4.6.2

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "SEMVER",
        "events": [
          {
            "introduced": "4.1.0"
          },
          {
            "fixed": "4.5.10"
          },
          {
            "introduced": "4.6.0"
          },
          {
            "fixed": "4.6.2"
          }
        ]
      }
    ],
    "package": {
      "name": "jupyterlab",
      "purl": "pkg:bitnami/jupyterlab",
      "ecosystem": "Bitnami"
    },
    "severity": [
      {
        "type": "CVSS_V4",
        "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
      }
    ],
    "database_specific": {
      "source": "https://github.com/bitnami/vulndb/tree/main/data/jupyterlab/BIT-jupyterlab-2026-73627.json"
    }
  }
]
Related CVEs
CVE-2026-73627

Source reference: /aliases

Publisher severity

medium

Source reference: /database_specific/severity

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2026-73627 · Medium

jupyterlab, jupyterlab

Event
#58676 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. BIT-jupyterlab-2026-73627 · Revision 1Source updated