OpenCMS 14 & 15 - Cross Site Scripting

Cross-site scripting XSS vulnerability in Alkacon Software Open CMS, affecting versions 14 and 15 of the 'Mercury' template. id: CVE-2023-6379 info: name: OpenCMS 14 & 15 - Cross Site Scripting author: msegoviag severity: medium description: | Cross-site scripting XSS vulnerability in Alkacon...

zeek-spicy-stun

STUN Session Traversal Utilities for NAT STUN This is a Zeek protocol analyzer that detects STUN based on Spicy. You must install Spicy to use this package. This package will create two logs: stun.log - This log has every STUN message. stunnat.log - This log has NAT detections from mapped...

Mercury Python Patch Kernel WebSocket Handler Code Execution

The vulnerability of the patchkernelwebsockethandler function in the Mercury Python framework is related to vulnerabilities in the authentication process. Exploiting this vulnerability could allow a malicious actor to execute arbitrary code remotely...

BLOCKED_PATTERNS Component Code Execution

The vulnerability of the BLOCKEDPATTERNS component in the Mercury Python framework is related to insufficient processing of regular expressions. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

Exploit for CVE-2026-111058

CVE-2026-111058+CVE-2026-111057-mercury-rce Mercury unauth RC...

Mercury 3.2.5 Unauthenticated Remote Code Execution

Mercury versions 3.0.0 through 3.2.5 contain unauthenticated remote code execution through Jupyter kernel execution. Versions through 3.2.3 additionally expose unauthenticated terminal access. This proof of concept demonstrates both issues. https://packetstorm.news/download/236488...

CVE-2026-111059

Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. From 3.0.0 until 3.2.11, mr.Markdown converts attacker-controlled Markdown to HTML without sanitizing raw HTML before assigning it to an ipywidgets.HTML sink. Event-handler attributes and other active...

Mercury: Stored / DOM Cross-Site Scripting (XSS): mr.Markdown renders untrusted content as raw, unsanitized HTML

Summary Mercury turns Jupyter notebooks into shared web apps/dashboards. The mr.Markdown widget converts its input to HTML with python-markdown and no sanitization step. MarkdownWidget is an ipywidgets.HTML widget, whose value is written to the page as raw HTML via innerHTML with no sanitization,...

Mercury: Unauthenticated Remote Code Execution in /api/terminals - access control bypass

Summary A missing comma in mercuryapp/blockhandler.py's BLOCKEDPATTERNS list causes the blocklist to fail to cover the /api/terminals endpoint. As a result, any unauthenticated attacker can spawn a full, interactive OS-level shell on the host running Mercury. Details The blocklist in...

GHSA-F8C7-RWF9-FMGM Mercury: Unauthenticated Remote Code Execution in /api/terminals - access control bypass

Summary A missing comma in mercuryapp/blockhandler.py's BLOCKEDPATTERNS list causes the blocklist to fail to cover the /api/terminals endpoint. As a result, any unauthenticated attacker can spawn a full, interactive OS-level shell on the host running Mercury. Details The blocklist in...

GHSA-RV4M-XM3F-3CCQ Mercury: Unauthenticated Remote Code Execution via /api/kernels

Mercury runs a JupyterLab server with anonymous access by default mercuryapp/main.py sets --IdentityProvider.token='' when no --token/MERCURYTOKEN is given; when tokenless it also sets --ServerApp.disablecheckxsrf=True. It relies on a blocklist mercuryapp/blockhandler.py BLOCKEDPATTERNS: /lab,...

Mercury: Unauthenticated Remote Code Execution via /api/kernels

Mercury runs a JupyterLab server with anonymous access by default mercuryapp/main.py sets --IdentityProvider.token='' when no --token/MERCURYTOKEN is given; when tokenless it also sets --ServerApp.disablecheckxsrf=True. It relies on a blocklist mercuryapp/blockhandler.py BLOCKEDPATTERNS: /lab,...

CVE-2026-111058

Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. Prior to 3.2.6, default tokenless deployments allow anonymous clients to create Jupyter kernels and send executerequest messages containing arbitrary Python. The endpoint blocklist does not cover...

CVE-2026-111057

Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. From 3.0.0 until 3.2.4, a missing comma in BLOCKEDPATTERNS concatenates the /lab and /api/terminals regular-expression literals. Requests to /api/terminals therefore bypass the anonymous endpoint...

CVE-2026-111059 Mercury: Stored / DOM Cross-Site Scripting (XSS): mr.Markdown renders untrusted content as raw, unsanitized HTML

Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. From 3.0.0 until 3.2.11, mr.Markdown converts attacker-controlled Markdown to HTML without sanitizing raw HTML before assigning it to an ipywidgets.HTML sink. Event-handler attributes and other active...

EUVD-2026-104453

Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. From 3.0.0 until 3.2.11, mr.Markdown converts attacker-controlled Markdown to HTML without sanitizing raw HTML before assigning it to an ipywidgets.HTML sink. Event-handler attributes and other active...

CVE-2026-111059 Mercury: Stored / DOM Cross-Site Scripting (XSS): mr.Markdown renders untrusted content as raw, unsanitized HTML

Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. From 3.0.0 until 3.2.11, mr.Markdown converts attacker-controlled Markdown to HTML without sanitizing raw HTML before assigning it to an ipywidgets.HTML sink. Event-handler attributes and other active...

CVE-2026-111059 Mercury: Stored / DOM Cross-Site Scripting (XSS): mr.Markdown renders untrusted content as raw, unsanitized HTML

Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. From 3.0.0 until 3.2.11, mr.Markdown converts attacker-controlled Markdown to HTML without sanitizing raw HTML before assigning it to an ipywidgets.HTML sink. Event-handler attributes and other active...

CVE-2026-111059

The Mercury Python framework, used for sharing Jupyter notebooks, is vulnerable to Stored / DOM Cross-Site Scripting (XSS) in versions 3.0.0 through 3.2.10 . The root cause is that the mr.Markdown component converts attacker-controlled Markdown into HTML without sufficient sanitization before ass...

CVE-2026-111059

Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. From 3.0.0 until 3.2.11, mr.Markdown converts attacker-controlled Markdown to HTML without sanitizing raw HTML before assigning it to an ipywidgets.HTML sink. Event-handler attributes and other active...