GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

OPENSUSE-SU-2026:10748-1

Vulnerability from csaf_opensuse - Published: 2026-05-11 00:00 - Updated: 2026-09-17 17:04
Summary
jupyter-jupyterlab-4.5.7-1.1 on GA media
Severity
Moderate
Notes
Title of the patch: jupyter-jupyterlab-4.5.7-1.1 on GA media
Description of the patch: These are all security issues fixed in the jupyter-jupyterlab-4.5.7-1.1 package on the GA media of openSUSE Tumbleweed.
Patchnames: openSUSE-Tumbleweed-2026-10748
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2026-40171
Affected products
Product Identifier Version Remediation
Unresolved product id: openSUSE Tumbleweed:jupyter-jupyterlab-0:4.5.7-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jupyter-jupyterlab-0:4.5.7-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jupyter-jupyterlab-0:4.5.7-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:jupyter-jupyterlab-0:4.5.7-1.1.x86_64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python311-jupyterlab-0:4.5.7-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python311-jupyterlab-0:4.5.7-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python311-jupyterlab-0:4.5.7-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python311-jupyterlab-0:4.5.7-1.1.x86_64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-jupyterlab-0:4.5.7-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-jupyterlab-0:4.5.7-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-jupyterlab-0:4.5.7-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-jupyterlab-0:4.5.7-1.1.x86_64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.x86_64 —
Vendor Fix
Threats
Impact moderate
CVE-2026-42266
Affected products
Recommended 16 products, the same list as for CVE-2026-40171
Threats
Impact important
CVE-2026-42557
9.6 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Affected products
Recommended 16 products, the same list as for CVE-2026-40171
Threats
Impact critical
References
To clipboard 

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          "product_id": "openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.ppc64le"
        },
        "product_reference": "python314-jupyterlab-0:4.5.7-1.1.ppc64le",
        "relates_to_product_reference": "openSUSE Tumbleweed"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "python314-jupyterlab-0:4.5.7-1.1.s390x as component of openSUSE Tumbleweed",
          "product_id": "openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.s390x"
        },
        "product_reference": "python314-jupyterlab-0:4.5.7-1.1.s390x",
        "relates_to_product_reference": "openSUSE Tumbleweed"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "python314-jupyterlab-0:4.5.7-1.1.x86_64 as component of openSUSE Tumbleweed",
          "product_id": "openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.x86_64"
        },
        "product_reference": "python314-jupyterlab-0:4.5.7-1.1.x86_64",
        "relates_to_product_reference": "openSUSE Tumbleweed"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-40171",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-40171"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In Jupyter Notebook versions 7.0.0 through 7.5.5, JupyterLab versions 4.5.6 and earlier, and the corresponding @jupyter-notebook/help-extension and @jupyterlab/help-extension packages before 7.5.6 and 4.5.7, a stored cross-site scripting issue in the help command linker can be chained with attacker-controlled notebook content to steal authentication tokens with a single click.\n\nAn attacker can craft a malicious notebook file containing elements that appear indistinguishable from legitimate controls and trigger execution when a user interacts with them. Successful exploitation allows theft of the user\u0027s authentication token and complete takeover of the Jupyter session through the REST API, including reading files, creating or modifying files, accessing kernels to execute arbitrary code, and creating terminals for shell access. This issue has been fixed in Notebook 7.5.6, JupyterLab 4.5.7, @jupyter-notebook/help-extension 7.5.6, and @jupyterlab/help-extension 4.5.7. As a workaround, disable the affected help extensions or set allowCommandLinker to false in the sanitizer configuration.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
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      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-40171",
          "url": "https://www.suse.com/security/cve/CVE-2026-40171"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1264348 for CVE-2026-40171",
          "url": "https://bugzilla.suse.com/1264348"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "openSUSE Tumbleweed:jupyter-jupyterlab-0:4.5.7-1.1.aarch64",
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            "openSUSE Tumbleweed:jupyter-jupyterlab-0:4.5.7-1.1.x86_64",
            "openSUSE Tumbleweed:python311-jupyterlab-0:4.5.7-1.1.aarch64",
            "openSUSE Tumbleweed:python311-jupyterlab-0:4.5.7-1.1.ppc64le",
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            "openSUSE Tumbleweed:python313-jupyterlab-0:4.5.7-1.1.ppc64le",
            "openSUSE Tumbleweed:python313-jupyterlab-0:4.5.7-1.1.s390x",
            "openSUSE Tumbleweed:python313-jupyterlab-0:4.5.7-1.1.x86_64",
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            "openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.ppc64le",
            "openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.s390x",
            "openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-05-11T00:00:00Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2026-40171"
    },
    {
      "cve": "CVE-2026-42266",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-42266"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.0.0 to 4.5.6, the allow-list of extensions that can be installed from PyPI Extension Manager (allowed_extensions_uris) is not correctly enforced by JupyterLab. The PyPI Extension Manager was not contained to packages listed on the default PyPI index. This vulnerability is fixed in 4.5.7.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
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          "summary": "CVE-2026-42266",
          "url": "https://www.suse.com/security/cve/CVE-2026-42266"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1265270 for CVE-2026-42266",
          "url": "https://bugzilla.suse.com/1265270"
        }
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      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
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        {
          "category": "impact",
          "date": "2026-05-11T00:00:00Z",
          "details": "important"
        }
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      "title": "CVE-2026-42266"
    },
    {
      "cve": "CVE-2026-42557",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-42557"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to 4.5.7, JupyterLab\u0027s HTML sanitizer allowlists data-commandlinker-command and data-commandlinker-args on button elements, while CommandLinker listens for all click events on document.body and executes the named command without checking whether the element came from trusted JupyterLab UI. A notebook with a pre-saved HTML cell output containing a deceptive button can trigger arbitrary JupyterLab commands - including arbitrary code execution - on a single user click, without any code being submitted for execution by the user. This vulnerability is fixed in 4.5.7.",
          "title": "CVE description"
        }
      ],
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          "summary": "CVE-2026-42557",
          "url": "https://www.suse.com/security/cve/CVE-2026-42557"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1265269 for CVE-2026-42557",
          "url": "https://bugzilla.suse.com/1265269"
        }
      ],
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        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
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      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.6,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "openSUSE Tumbleweed:jupyter-jupyterlab-0:4.5.7-1.1.aarch64",
            "openSUSE Tumbleweed:jupyter-jupyterlab-0:4.5.7-1.1.ppc64le",
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            "openSUSE Tumbleweed:python311-jupyterlab-0:4.5.7-1.1.s390x",
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            "openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.aarch64",
            "openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.ppc64le",
            "openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.s390x",
            "openSUSE Tumbleweed:python314-jupyterlab-0:4.5.7-1.1.x86_64"
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-05-11T00:00:00Z",
          "details": "critical"
        }
      ],
      "title": "CVE-2026-42557"
    }
  ]
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.


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.