Stirling-PDF SSRF via Markdown

Stirling-PDF is a locally hosted web application that performs various operations on PDF files. Prior to version 1.1.0, when using the /api/v1/convert/markdown/pdf endpoint to convert Markdown to PDF, the backend calls a third-party tool to process it and includes a sanitizer for security...

SiYuan <= v3.5.9 - Cross Site Scripting

SiYuan v3.5.10 contains a reflected XSS caused by improper sanitization of javascript: href attributes allowing ASCII control characters to bypass prefix checks in SVG sanitizer, letting unauthenticated attackers execute JavaScript via /api/icon/getDynamicIcon. id: CVE-2026-31809 info: name: SiYu...

Stirling-PDF < 1.1.0 - Server-Side Request Forgery

Stirling-PDF 1.1.0 contains a server side request forgery caused by bypassing the sanitizer in the /api/v1/convert/html/pdf endpoint when processing HTML to PDF conversion, letting attackers perform SSRF, exploit requires local access. id: CVE-2025-55150 info: name: Stirling-PDF 1.1.0 - Server-Si...

EUVD-2026-39126

SiYuan: Stored XSS in Bazaar marketplace via package README event handlers...

CVE-2026-59923

A flaw was found in Mistune, a Python Markdown parser. This vulnerability allows an attacker to bypass URL protections by using specially crafted Markdown links or images containing percent-encoded javascript URIs. This can lead to the execution of arbitrary scripts in the rendered HTML,...

CVE-2026-59833 SiYuan: Stored XSS to RCE in SiYuan via a per-attribute URL-scheme sanitizer gap in Lute (form action / SVG xlink:href)

SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, SiYuan renders note and package content to HTML through the Lute engine with sanitization enabled, but Lute's dangerous javascript scheme block does not check form action or SVG xlink:href attributes, allowing stored...

[SECURITY] Fedora 44 Update: python-nh3-0.3.6-1.fc44

Python binding to Ammonia HTML sanitizer Rust crate...

HTML injection in Jupyter Notebook and JupyterLab leading to DOM Clobbering

ImpactThe vulnerability depends on user interaction by opening a malicious notebook with Markdown cells, or Markdown file using JupyterLab preview feature.A malicious user can access any data that the attacked user has access to as well as perform arbitrary requests acting as the attacked user...

BIT-MASTODON-2026-50129 Mastodon: Persistent anonymous DoS via unhandled NoMethodError in MATH_TRANSFORMER

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.11, 4.4.18, and 4.3.24, a DoS can be triggered by Uncaught Exception vulerability, due to missing exception handling in the math sanitizer. Malformed nodes can result in a DoS of a whole server or targeted...

EUVD-2026-37811

Steeltoe's env sanitizer misses connection strings — leaks embedded DB passwords...

Linux Distros Unpatched Vulnerability : CVE-2026-53343

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ARM: 9475/1: entry: use byte load for KASAN VMAP stack shadow Commit 44e9a3bb76e5 ARM: 9430/1: entry: Do a dummy read from VMAP shadow added a dummy read from t...

CVE-2026-58263

Jodit Editor is a WYSIWYG editor with written in pure TypeScript file and image editing capabilities. In versions prior to 4.12.28, the built-in clean-html sanitizer can be bypassed by a MathML/...

CVE-2026-58263 Jodit Editor: Mutation XSS in jodit clean-html via a MathML/style rawtext carrier

Jodit Editor is a WYSIWYG editor with written in pure TypeScript file and image editing capabilities. In versions prior to 4.12.28, the built-in clean-html sanitizer can be bypassed by a MathML/ carrier that hides a dangerous element from the sanitizer's element walk, so a no-interaction event...

UBUNTU-CVE-2026-53346

In the Linux kernel, the following vulnerability has been resolved: rust: arm64: set uwtable llvm module flag for CONFIGUNWINDTABLES Due to a rustc bug 1 the -Cforce-unwind-tables=y flag only emits the uwtable annotation for functions, but not for the module. This means that compiler-generated...

EUVD-2026-40977

In the Linux kernel, the following vulnerability has been resolved: ARM: 9475/1: entry: use byte load for KASAN VMAP stack shadow Commit 44e9a3bb76e5 "ARM: 9430/1: entry: Do a dummy read from VMAP shadow" added a dummy read from the KASAN VMAP stack shadow in switchto. The read uses ldr, but the...

DOMPurify: DOMPurify: Cross-Site Scripting (XSS) via inconsistent tag sanitization

A flaw was found in DOMPurify, a DOM-only cross-site scripting sanitizer. A remote attacker could exploit an inconsistency in how forbidden tags and attributes are handled when function-based tag additions are used. This allows malicious HTML, MathML, or SVG elements to bypass sanitization and...

EUVD-2026-40884

UltraVNC viewer through 1.8.2.2 contains an integer overflow leading to a heap buffer overflow in the RFB protocol failure-response parsing path. In vncviewer/ClientConnection.cpp, the 4-byte network-supplied reasonLen field type CARD32 is passed as reasonLen+1 to CheckBufferSize. Because both...

EUVD-2026-40711

Insufficient validation of untrusted input in SanitizerAPI in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to bypass same origin policy via a crafted HTML page. Chromium security severity: Medium...

PT-2026-54911

Name of the Vulnerable Software and Affected Versions Jodit Editor versions prior to 4.12.28 Description The built-in clean-html sanitizer can be bypassed using a MathML/ carrier. This technique hides dangerous elements from the sanitizer's element walk, allowing no-interaction event handlers to...

BIT-ENVOY-2026-48090 Envoy HTTP: OAuth2 filter late async token completion after stream teardown (UAF / crash risk)

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, the HTTP OAuth2 filter envoy.filters.http.oauth2 can leave an in-flight async token exchange attached to a downstream stream that has already been torn down. A late...