Vulnerability-Lookup

CVE-2020-26232 (GCVE-0-2020-26232)

Vulnerability from cvelistv5 – Published: 2020-11-24 21:10 – Updated: 2024-08-04 15:56

Title

Open redirect in Jupyter Server

Summary

Jupyter Server before version 1.0.6 has an Open redirect vulnerability. A maliciously crafted link to a jupyter server could redirect the browser to a different website. All jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may appear safe, but ultimately redirect to a spoofed server on the public internet.

Severity

4.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N

CWE

CWE-601

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/jupyter/jupyter_server/securit…	x_refsource_CONFIRM
https://github.com/jupyter-server/jupyter_server/…	x_refsource_MISC
https://github.com/jupyter-server/jupyter_server/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
jupyter	jupyter_server	Affected: < 1.0.6	guessed

Show details on NVD website

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      "id": "CVE-2020-26232",
      "initial_release_date": "2023-02-15T03:53:16Z",
      "product_status:recommended": "9",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2020-26232",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-26232.json",
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}

BREW-JUPYTERLAB-CVE-2020-26232 (GHSA-GRFJ-WJV9-4F9V)

Vulnerability from osv_homebrew – Published: 2026-08-13 17:01 – Updated: 2026-09-16 09:20 – Source website

Summary

Open redirect in Jupyter Server

Details

Impact

What kind of vulnerability is it? Who is impacted?

Open redirect vulnerability - a maliciously crafted link to a jupyter server could redirect the browser to a different website.

All jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may appear safe, but ultimately redirect to a spoofed server on the public internet.

This originated in jupyter/notebook: https://github.com/jupyter/notebook/security/advisories/GHSA-c7vm-f5p4-8fqh

Patches

Has the problem been patched? What versions should users upgrade to?

jupyter_server 1.0.6

References

OWASP page on open redirects

For more information

If you have any questions or comments about this advisory, or vulnerabilities to report, please email our security list security@ipython.org.

Credit: zhuonan li of Alibaba Application Security Team

Severity

4.1 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N

5.1 (Medium)


                    
                      CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N

References

URL

Type

	https://github.com/jupyter/jupyter_server/securit…	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2020-26232	ADVISORY
	https://github.com/jupyter-server/jupyter_server/…	WEB
	https://github.com/jupyter-server/jupyter_server	PACKAGE
	https://github.com/jupyter-server/jupyter_server/…	WEB
	https://github.com/pypa/advisory-database/tree/ma…	WEB

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "resource": "jupyter-server",
        "resource_purl": "pkg:pypi/jupyter-server@2.21.0",
        "upstream_fixed_in": "1.0.6"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "jupyterlab",
        "purl": "pkg:brew/jupyterlab"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.6.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/jupyter-server@2.21.0",
        "name": "jupyter-server",
        "resource": "jupyter-server",
        "strategy": "registry",
        "subject_version": "2.21.0"
      }
    ]
  },
  "details": "### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nOpen redirect vulnerability - a maliciously crafted link to a jupyter server could redirect the browser to a different website.\n\nAll jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may *appear* safe, but ultimately redirect to a spoofed server on the public internet.\n\nThis originated in jupyter/notebook: https://github.com/jupyter/notebook/security/advisories/GHSA-c7vm-f5p4-8fqh\n\n### Patches\n\n_Has the problem been patched? What versions should users upgrade to?_\n\njupyter_server 1.0.6\n\n### References\n\n[OWASP page on open redirects](https://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html)\n\n### For more information\n\nIf you have any questions or comments about this advisory, or vulnerabilities to report, please email our security list [security@ipython.org](mailto:security@ipython.org).\n\nCredit: zhuonan li of Alibaba Application Security Team",
  "id": "BREW-jupyterlab-CVE-2020-26232",
  "modified": "2026-09-16T09:20:59Z",
  "published": "2026-08-13T17:01:18Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26232"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jupyter-server/jupyter_server"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106---2020-11-18"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/jupyter-server/PYSEC-2020-234.yaml"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Open redirect in Jupyter Server",
  "upstream": [
    "GHSA-grfj-wjv9-4f9v",
    "CVE-2020-26232",
    "PYSEC-2020-234"
  ]
}

FKIE_CVE-2020-26232

Vulnerability from fkie_nvd - Published: 2020-11-24 21:15 - Updated: 2026-06-17 03:07

Severity

4.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106---2020-11-18	Release Notes, Third Party Advisory
security-advisories@github.com	https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157	Patch, Third Party Advisory
security-advisories@github.com	https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106---2020-11-18	Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v	Third Party Advisory

Impacted products

	Vendor	Product	Version
	jupyter	jupyter_server	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "jupyter_server",
          "vendor": "jupyter",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.0.6"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:jupyter:jupyter_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "515A8195-8266-46C5-BF95-93644633063A",
              "versionEndExcluding": "1.0.6",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Jupyter Server before version 1.0.6 has an Open redirect vulnerability. A maliciously crafted link to a jupyter server could redirect the browser to a different website. All jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may appear safe, but ultimately redirect to a spoofed server on the public internet."
    },
    {
      "lang": "es",
      "value": "Jupyter Server anterior a versi\u00f3n 1.0.6, presenta una vulnerabilidad de redireccionamiento abierto.\u0026#xa0;Un enlace creado con fines maliciosos en un servidor jupyter podr\u00eda redireccionar el navegador a un sitio web diferente.\u0026#xa0;Todos los servidores jupyter est\u00e1n afectados t\u00e9cnicamente; sin embargo, estos enlaces creados con fines maliciosos solo se pueden crear de forma razonable para hosts de servidores jupyter conocidos.\u0026#xa0;Un enlace a su servidor jupyter puede parecer seguro, pero en \u00faltima instancia redirecciona a un servidor falsificado en la internet p\u00fablica"
    }
  ],
  "id": "CVE-2020-26232",
  "lastModified": "2026-06-17T03:07:52.760",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-11-24T21:15:11.557",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106---2020-11-18"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106---2020-11-18"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-GRFJ-WJV9-4F9V

Vulnerability from github – Published: 2020-11-24 21:20 – Updated: 2024-09-23 19:28

Summary

Open redirect in Jupyter Server

Details

Impact

What kind of vulnerability is it? Who is impacted?

Open redirect vulnerability - a maliciously crafted link to a jupyter server could redirect the browser to a different website.

This originated in jupyter/notebook: https://github.com/jupyter/notebook/security/advisories/GHSA-c7vm-f5p4-8fqh

Patches

Has the problem been patched? What versions should users upgrade to?

jupyter_server 1.0.6

References

OWASP page on open redirects

For more information

If you have any questions or comments about this advisory, or vulnerabilities to report, please email our security list security@ipython.org.

Credit: zhuonan li of Alibaba Application Security Team

Severity

4.1 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N

5.1 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "jupyter-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26232"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-11-24T21:10:20Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nOpen redirect vulnerability - a maliciously crafted link to a jupyter server could redirect the browser to a different website.\n\nAll jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may *appear* safe, but ultimately redirect to a spoofed server on the public internet.\n\nThis originated in jupyter/notebook: https://github.com/jupyter/notebook/security/advisories/GHSA-c7vm-f5p4-8fqh\n\n### Patches\n\n_Has the problem been patched? What versions should users upgrade to?_\n\njupyter_server 1.0.6\n\n### References\n\n[OWASP page on open redirects](https://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html)\n\n### For more information\n\nIf you have any questions or comments about this advisory, or vulnerabilities to report, please email our security list [security@ipython.org](mailto:security@ipython.org).\n\nCredit: zhuonan li of Alibaba Application Security Team",
  "id": "GHSA-grfj-wjv9-4f9v",
  "modified": "2024-09-23T19:28:58Z",
  "published": "2020-11-24T21:20:52Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26232"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jupyter-server/jupyter_server"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106---2020-11-18"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/jupyter-server/PYSEC-2020-234.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Open redirect in Jupyter Server"
}

GSD-2020-26232

Vulnerability from gsd - Updated: 2023-12-13 01:22

Details

Aliases

CVE-2020-26232

Aliases

CVE-2020-26232

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2020-26232",
    "description": "Jupyter Server before version 1.0.6 has an Open redirect vulnerability. A maliciously crafted link to a jupyter server could redirect the browser to a different website. All jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may appear safe, but ultimately redirect to a spoofed server on the public internet.",
    "id": "GSD-2020-26232",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-26232.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-26232"
      ],
      "details": "Jupyter Server before version 1.0.6 has an Open redirect vulnerability. A maliciously crafted link to a jupyter server could redirect the browser to a different website. All jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may appear safe, but ultimately redirect to a spoofed server on the public internet.",
      "id": "GSD-2020-26232",
      "modified": "2023-12-13T01:22:08.655281Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2020-26232",
        "STATE": "PUBLIC",
        "TITLE": "Open redirect in Jupyter Server"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "jupyter_server",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 1.0.6"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "jupyter"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Jupyter Server before version 1.0.6 has an Open redirect vulnerability. A maliciously crafted link to a jupyter server could redirect the browser to a different website. All jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may appear safe, but ultimately redirect to a spoofed server on the public internet."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-601"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v",
            "refsource": "CONFIRM",
            "url": "https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v"
          },
          {
            "name": "https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157",
            "refsource": "MISC",
            "url": "https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157"
          },
          {
            "name": "https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106---2020-11-18",
            "refsource": "MISC",
            "url": "https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106---2020-11-18"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-grfj-wjv9-4f9v",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c1.0.6",
          "affected_versions": "All versions before 1.0.6",
          "cvss_v2": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-601",
            "CWE-937"
          ],
          "date": "2021-01-07",
          "description": "Jupyter Server has an Open redirect vulnerability. A maliciously crafted link to a jupyter server could redirect the browser to a different website. All jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may appear safe, but ultimately redirect to a spoofed server on the public internet.",
          "fixed_versions": [
            "1.0.6"
          ],
          "identifier": "CVE-2020-26232",
          "identifiers": [
            "GHSA-grfj-wjv9-4f9v",
            "CVE-2020-26232"
          ],
          "not_impacted": "All versions starting from 1.0.6",
          "package_slug": "pypi/jupyter-server",
          "pubdate": "2020-11-24",
          "solution": "Upgrade to version 1.0.6 or above.",
          "title": "URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
          "urls": [
            "https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v",
            "https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157",
            "https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106---2020-11-18",
            "https://nvd.nist.gov/vuln/detail/CVE-2020-26232",
            "https://github.com/advisories/GHSA-grfj-wjv9-4f9v"
          ],
          "uuid": "fd001d2d-d1bf-495c-9a06-087e95c3d346"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:jupyter:jupyter_server:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.0.6",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2020-26232"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Jupyter Server before version 1.0.6 has an Open redirect vulnerability. A maliciously crafted link to a jupyter server could redirect the browser to a different website. All jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may appear safe, but ultimately redirect to a spoofed server on the public internet."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-601"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v"
            },
            {
              "name": "https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106---2020-11-18",
              "refsource": "MISC",
              "tags": [
                "Release Notes",
                "Third Party Advisory"
              ],
              "url": "https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106---2020-11-18"
            },
            {
              "name": "https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.0,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.3,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2020-12-02T20:21Z",
      "publishedDate": "2020-11-24T21:15Z"
    }
  }
}

OPENSUSE-SU-2024:11233-1

Vulnerability from csaf_opensuse - Published: 2024-06-15 00:00 - Updated: 2026-09-20 20:14

Summary

python36-jupyter-server-1.10.2-1.2 on GA media

Severity

Moderate

Scope

1 vulnerability in this advisory, including CVE-2020-26232.

CVE-2020-26232

5.4 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Recommended: 12 products

Open the full advisory

OPENSUSE-SU-2024:14143-1

Vulnerability from csaf_opensuse - Published: 2024-07-12 00:00 - Updated: 2026-09-20 21:14

Summary

python310-jupyter-server-2.13.0-2.2 on GA media

Severity

Moderate

Scope

1 vulnerability in this advisory, including CVE-2020-26232.

CVE-2020-26232

5.4 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Recommended: 24 products

Open the full advisory

PYSEC-2020-234

Vulnerability from pysec - Published: 2020-11-24 21:15 - Updated: 2021-08-27 03:22

Details

Impacted products

Name	purl
jupyter-server	pkg:pypi/jupyter-server

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "jupyter-server",
        "purl": "pkg:pypi/jupyter-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3d83e49090289c431da253e2bdb8dc479cbcb157"
            }
          ],
          "repo": "https://github.com/jupyter-server/jupyter_server",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0.0",
        "0.0.1",
        "0.0.2",
        "0.0.3",
        "0.0.4",
        "0.0.5",
        "0.1.0",
        "0.1.1",
        "0.2.0",
        "0.2.1",
        "0.3.0",
        "1.0.0",
        "1.0.0rc0",
        "1.0.0rc1",
        "1.0.0rc10",
        "1.0.0rc11",
        "1.0.0rc12",
        "1.0.0rc13",
        "1.0.0rc14",
        "1.0.0rc15",
        "1.0.0rc16",
        "1.0.0rc2",
        "1.0.0rc3",
        "1.0.0rc4",
        "1.0.0rc5",
        "1.0.0rc6",
        "1.0.0rc7",
        "1.0.0rc8",
        "1.0.0rc9",
        "1.0.1",
        "1.0.2",
        "1.0.3",
        "1.0.4",
        "1.0.5"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26232",
    "GHSA-grfj-wjv9-4f9v"
  ],
  "details": "Jupyter Server before version 1.0.6 has an Open redirect vulnerability. A maliciously crafted link to a jupyter server could redirect the browser to a different website. All jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may appear safe, but ultimately redirect to a spoofed server on the public internet.",
  "id": "PYSEC-2020-234",
  "modified": "2021-08-27T03:22:05.136094Z",
  "published": "2020-11-24T21:15:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106---2020-11-18"
    },
    {
      "type": "FIX",
      "url": "https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2020-26232 (GCVE-0-2020-26232)

BREW-JUPYTERLAB-CVE-2020-26232 (GHSA-GRFJ-WJV9-4F9V)

Impact

Patches

References

For more information

FKIE_CVE-2020-26232

GHSA-GRFJ-WJV9-4F9V

Impact

Patches

References

For more information

GSD-2020-26232

OPENSUSE-SU-2024:11233-1

OPENSUSE-SU-2024:14143-1

PYSEC-2020-234

Tags

Sightings

Nomenclature

Related by attack behaviour