CVE-2026-102904 (GCVE-0-2026-102904)

Vulnerability from cvelistv5 – Published: 2026-09-29 20:47 – Updated: 2026-09-29 20:47
VLAI
Title
JupyterLab: Argument injection in JupyterLab extension uninstall exposes server-readable files and internal URLs
Summary
JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From JupyterLab 4.0.0 until 4.5.11 and 4.6.4, the PyPI Extension Manager uninstall request reaches ExtensionHandler.post, which validates extension names for installation but passes uninstall names to PyPIExtensionManager.uninstall and python -m pip uninstall without rejecting option-like values. The security impact requires that the PyPI Extension Manager is enabled, the account can call the extension API, and kernels and terminals are disabled or delegated to remote hosts; otherwise the user can already read files and make outbound requests directly. An authenticated user with extension API access can supply a pip requirements option to make the server read a local file or fetch an internal URL, and reflected parse errors can return the first unparsable line or response content. A pip log option can also create or corrupt a chosen path with pip-generated log text, but the requester cannot select an arbitrary disclosed line or arbitrary file content, and the injection does not add code execution or availability impact beyond ordinary package removal. This issue is fixed in JupyterLab 4.5.11 and 4.6.4.
Severity
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-88 - Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
  • CWE-209 - Generation of Error Message Containing Sensitive Information
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version CPE status
jupyterlab jupyterlab Affected: >= 4.0.0, < 4.5.11
Affected: >= 4.6.0, < 4.6.4
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "jupyterlab",
          "vendor": "jupyterlab",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 4.5.11"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.6.0, \u003c 4.6.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From JupyterLab 4.0.0 until 4.5.11 and 4.6.4, the PyPI Extension Manager uninstall request reaches ExtensionHandler.post, which validates extension names for installation but passes uninstall names to PyPIExtensionManager.uninstall and python -m pip uninstall without rejecting option-like values. The security impact requires that the PyPI Extension Manager is enabled, the account can call the extension API, and kernels and terminals are disabled or delegated to remote hosts; otherwise the user can already read files and make outbound requests directly. An authenticated user with extension API access can supply a pip requirements option to make the server read a local file or fetch an internal URL, and reflected parse errors can return the first unparsable line or response content. A pip log option can also create or corrupt a chosen path with pip-generated log text, but the requester cannot select an arbitrary disclosed line or arbitrary file content, and the injection does not add code execution or availability impact beyond ordinary package removal. This issue is fixed in JupyterLab 4.5.11 and 4.6.4."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-88",
              "description": "CWE-88: Improper Neutralization of Argument Delimiters in a Command (\u0027Argument Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-209",
              "description": "CWE-209: Generation of Error Message Containing Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-29T20:47:43.290Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-3325-v43h-43rv",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-3325-v43h-43rv"
        },
        {
          "name": "https://github.com/jupyterlab/jupyterlab/commit/a274a8276b9185d03efd4c3c20713d3137ac49e6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/jupyterlab/jupyterlab/commit/a274a8276b9185d03efd4c3c20713d3137ac49e6"
        },
        {
          "name": "https://github.com/jupyterlab/jupyterlab/commit/e277bc958e737130ac47b6c5078d08b29298828f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/jupyterlab/jupyterlab/commit/e277bc958e737130ac47b6c5078d08b29298828f"
        },
        {
          "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-3325-v43h-43rv",
        "discovery": "UNKNOWN"
      },
      "title": "JupyterLab: Argument injection in JupyterLab extension uninstall exposes server-readable files and internal URLs"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-102904",
    "datePublished": "2026-09-29T20:47:43.290Z",
    "dateReserved": "2026-09-29T17:34:42.744Z",
    "dateUpdated": "2026-09-29T20:47:43.290Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-102904",
      "date": "2026-09-30",
      "epss": "0.00206",
      "percentile": "0.09546"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "jupyterlab",
                "vendor": "jupyterlab",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003e= 4.0.0, \u003c 4.5.11"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 4.6.0, \u003c 4.6.4"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From JupyterLab 4.0.0 until 4.5.11 and 4.6.4, the PyPI Extension Manager uninstall request reaches ExtensionHandler.post, which validates extension names for installation but passes uninstall names to PyPIExtensionManager.uninstall and python -m pip uninstall without rejecting option-like values. The security impact requires that the PyPI Extension Manager is enabled, the account can call the extension API, and kernels and terminals are disabled or delegated to remote hosts; otherwise the user can already read files and make outbound requests directly. An authenticated user with extension API access can supply a pip requirements option to make the server read a local file or fetch an internal URL, and reflected parse errors can return the first unparsable line or response content. A pip log option can also create or corrupt a chosen path with pip-generated log text, but the requester cannot select an arbitrary disclosed line or arbitrary file content, and the injection does not add code execution or availability impact beyond ordinary package removal. This issue is fixed in JupyterLab 4.5.11 and 4.6.4."
          }
        ],
        "id": "CVE-2026-102904",
        "lastModified": "2026-09-29T21:40:15.583",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.4,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 2.5,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-09-29T21:17:18.423",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/jupyterlab/jupyterlab/commit/a274a8276b9185d03efd4c3c20713d3137ac49e6"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/jupyterlab/jupyterlab/commit/e277bc958e737130ac47b6c5078d08b29298828f"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.11"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.4"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-3325-v43h-43rv"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-88"
              },
              {
                "lang": "en",
                "value": "CWE-209"
              },
              {
                "lang": "en",
                "value": "CWE-918"
              }
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            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
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    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-29T22:12:47+00:00",
      "cve": "CVE-2026-102904",
      "id": "CVE-2026-102904",
      "initial_release_date": "2026-09-29T20:47:43.290000+00:00",
      "product_status:known_affected": "21",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "jupyterlab: JupyterLab: Information disclosure via extension uninstallation argument injection",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-102904.json",
      "version": "3"
    }
  }
}



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