GHSA-3W28-36P9-W929 Gogs's Unauthenticated Jupyter Notebook (ipynb) Sanitizer allows arbitrary data: URIs leading to XSS

Summary The Jupyter Notebook ipynb sanitizer endpoint at POST /-/api/sanitizeipynb allows arbitrary data: URIs without proper restrictions, potentially leading to Cross-Site Scripting XSS. The endpoint uses bluemonday.UGCPolicy with p.AllowURLSchemes"data" which permits all data URI schemes...

Gogs's Unauthenticated Jupyter Notebook (ipynb) Sanitizer allows arbitrary data: URIs leading to XSS

Summary The Jupyter Notebook ipynb sanitizer endpoint at POST /-/api/sanitizeipynb allows arbitrary data: URIs without proper restrictions, potentially leading to Cross-Site Scripting XSS. The endpoint uses bluemonday.UGCPolicy with p.AllowURLSchemes"data" which permits all data URI schemes...

GHSA-6V7P-G79W-8964 vulnerabilities

Vulnerabilities for packages: openstack-kolla-toolbox-2025.1-fips, dask-kubernetes, openstack-horizon-2026.1-fips, mitmproxy, openstack-kolla-toolbox-2026.1, request-1276, dbt-bigquery, openstack-glance-2025.1, airflow, openstack-placement-2025.1, tensorflow-cpu-jupyter, nvidia-nsight-compute-13....

PT-2026-51634

Name of the Vulnerable Software and Affected Versions Gogs versions prior to 0.14.3 Description The Jupyter Notebook ipynb sanitizer endpoint at 'POST /-/api/sanitize ipynb' allows arbitrary data: URIs without proper restrictions, which can lead to Cross-Site Scripting XSS. The endpoint utilizes...

GHSA-JQ8V-RMF6-65JW Gogs has Stored XSS in `.ipynb` Preview

Summary Although .ipynb previews are sanitized on the server side via /-/api/sanitizeipynb, the inserted content is re-rendered on the client side without sanitization using marked on elements with the .nb-markdown-cell class. During this process, links containing schemes such as javascript: can ...

DEBIAN-CVE-2026-44727

Jupyter Server is the backend for Jupyter web applications. Prior to 2.20, the nbconvert HTTP handlers in jupyterserver render user-authored notebook HTML under the Jupyter origin without a sandbox directive in their Content-Security-Policy. Combined with nbconvert.HTMLExporter's default...

GHSA-6VXV-WG6J-5QWP Gogs: XSS in .ipynb files renderer due to outdated notebookjs

Summary Gogs renders Jupyter notebook files .ipynb using jsvine/notebookjs, but the version is outdated, missing patches for known XSS vulnerabilities. Details Gogs uses version 0.4.2 of notebookjs to render Jupyter notebook files:...

Improper Restriction of Rendered UI Layers or Frames

Overview Affected versions of this package are vulnerable to Improper Restriction of Rendered UI Layers or Frames via the NbconvertFileHandler and NbconvertPostHandler classes when rendering user-authored notebook HTML without a proper sandbox directive in the Content-Security-Policy. An attacker...

EUVD-2026-37809

marimo before 0.23.9 contains a reflected cross-site scripting vulnerability in the notebook page that allows unauthenticated attackers to inject arbitrary JavaScript by exploiting improper escaping of single quotes in the file query parameter reflected into an inline JavaScript string literal...

GHSA-8M59-7XV8-735H marimo contains a reflected cross-site scripting vulnerability in the notebook page

marimo before 0.23.9 contains a reflected cross-site scripting vulnerability in the notebook page that allows unauthenticated attackers to inject arbitrary JavaScript by exploiting improper escaping of single quotes in the file query parameter reflected into an inline JavaScript string literal...

CVE-2026-54386

marimo before 0.23.9 contains a reflected cross-site scripting vulnerability in the notebook page that allows unauthenticated attackers to inject arbitrary JavaScript by exploiting improper escaping of single quotes in the file query parameter reflected into an inline JavaScript string literal...

PT-2026-50557

Name of the Vulnerable Software and Affected Versions marimo versions prior to 0.23.9 Description A reflected cross-site scripting issue exists in the notebook page. Unauthenticated attackers can inject arbitrary JavaScript by exploiting improper escaping of single quotes in the file query...

CVE-2026-49384

In JetBrains PyCharm before 2025.3.4 stored XSS in Jupyter notebook Markdown cells was possible...

CVE-2026-5921

A server-side request forgery SSRF vulnerability was identified in GitHub Enterprise Server that allowed an attacker to extract sensitive environment variables from the instance through a timing side-channel attack against the notebook rendering service. When private mode was disabled, the notebo...

CVE-2026-33588

Lack of user input validation in the file upload functionality of Open Notebook v1.8.3 allows the application user to create or modify files on the docker container via path traversal...

CVE-2026-33589

Lack of user input validation in the file upload functionality of Open Notebook v1.8.3 allows the application user to access local files content from the docker container via path traversal...

CVE-2026-33587

Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code and subsequently OS commands on the docker container via Server-Side Template Injection SSTI for user-created transformations...

CVE-2026-28201

An improper input validation, together with an overly permissive default CORS configuration in Open Notebook v1.8.1 allows remote attacker to trick a legitimate user to alter or delete arbitrary database entries via specially crafted malicious URL. Depending on the deployment, data exfiltration i...

CVE-2026-40171

A flaw was found in Jupyter Notebook and JupyterLab. A stored cross-site scripting XSS vulnerability in the help command linker can be exploited by an attacker who crafts a malicious notebook file. When a user interacts with this file, the XSS is triggered, allowing the attacker to steal...

CVE-2026-8034

A server-side request forgery SSRF vulnerability was identified in the GitHub Enterprise Server notebook viewer that allowed an attacker to access internal services by exploiting URL parser confusion between the validation layer and the HTTP request library. The hostname validation used a differe...