GHSA-PJ8J-P4G4-4VW8 Kimai has Server-Side Request Forgery in Invoice PDF Rendering via Markdown Image URLs

Summary Kimai 2.56.0 contains a server-side request forgery vulnerability in its invoice PDF preview and generation workflow. If an attacker can control Markdown content that is later rendered into an invoice PDF, such as Customer.invoiceText, the server-side PDF renderer will fetch remote image...

PT-2026-55971

Name of the Vulnerable Software and Affected Versions OpenAI Codex for macOS affected versions not specified Description The desktop application renders remote images from Markdown within model responses. An attacker can use indirect prompt injection—a technique where malicious instructions are...

CVE-2026-53427

Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' vulnerability in leandrocp MDEx allows stored or reflected cross-site scripting via attacker-controlled Markdown. When syntax highlighting and full info-string forwarding render: fullinfostring: true are enabled, t...

EUVD-2026-40175

Memory Allocation with Excessive Size Value vulnerability in leandrocp mdex allows an unauthenticated attacker to cause a denial of service through unbounded memory allocation. comraknif::lumisadapter::LumisAdapter::parsehighlightlines in native/comraknif/src/lumisadapter.rs eagerly expands a...

CVE-2026-53428 Unbounded memory allocation in highlight_lines range expansion in mdex

Memory Allocation with Excessive Size Value vulnerability in leandrocp mdex allows an unauthenticated attacker to cause a denial of service through unbounded memory allocation. comraknif::lumisadapter::LumisAdapter::parsehighlightlines in native/comraknif/src/lumisadapter.rs eagerly expands a...

CVE-2026-53428

Memory Allocation with Excessive Size Value vulnerability in leandrocp mdex allows an unauthenticated attacker to cause a denial of service through unbounded memory allocation. comraknif::lumisadapter::LumisAdapter::parsehighlightlines in native/comraknif/src/lumisadapter.rs eagerly expands a...

CVE-2026-53427

Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' vulnerability in leandrocp MDEx allows stored or reflected cross-site scripting via attacker-controlled Markdown. When syntax highlighting and full info-string forwarding render: fullinfostring: true are enabled, t...

CVE-2026-53428: Memory Allocation with Excessive Size Value

Memory Allocation with Excessive Size Value vulnerability in leandrocp mdex allows an unauthenticated attacker to cause a denial of service through unbounded memory allocation. comraknif::lumisadapter::LumisAdapter::parsehighlightlines in native/comraknif/src/lumisadapter.rs eagerly expands a...

PT-2026-53680

Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' vulnerability in leandrocp MDEx allows stored or reflected cross-site scripting via attacker-controlled Markdown. When syntax highlighting and full info-string forwarding render: full info string: true are enabled,...

CVE-2026-3472 Markdown image rendering bypass in AI bot tool result posts in Mattermost

Mattermost versions 10.11.x = 10.11.18, 11.6.x = 11.6.3, 11.5.x = 11.5.6 fail to properly apply markdown image rendering restrictions to AI bot tool result posts, which allows an authenticated attacker to exfiltrate data to an attacker-controlled server via injecting markdown image syntax into to...

CVE-2026-8661

Server-Side Request Forgery in the markdowntopdf action of Rapid7 InsightConnect Markdown Plugin on Linux in versions prior to 4.0.2 allows remote attackers to make arbitrary outbound HTTP requests via unsanitized resource-loading HTML elements img/src, CSS url, @import embedded in Markdown input...

CVE-2026-44696: Improper Neutralization of Input During Web Page Generation

OpenProject is open-source, web-based project management software. Prior to 17.4.0, OpenProject's rich text markdown rendering pipeline uses Sanitize::Config::RELAXED:css for inline style sanitization. This configuration permits essentially all CSS properties in style attributes on permitted HTML...

PT-2026-79774

Name of the Vulnerable Software and Affected Versions justhtml versions 0.9.0 through 1.21.0 Description A cross-site scripting issue exists in the to markdown function. The problem occurs because inline code spans do not recognize blank lines as block boundaries. This allows attackers to inject...

PT-2026-55844

justhtml: to markdown code-span blank-line breakout enables XSS Summary In justhtml 0.9.0 through 1.21.0, to markdown renders text and text inside a link as an inline Markdown code span whose only protection is backtick-fence length. A blank line in that text terminates the inline span in any...

PT-2026-52167

Name of the Vulnerable Software and Affected Versions Drupal AI versions 0.0.0 through 1.2.17 Drupal AI versions 1.3.0 through 1.3.8 Drupal AI versions 1.4.0 through 1.4.3 Description Improper neutralization of input during web page generation allows Cross-Site Scripting XSS. The module and...

CVE-2026-54326

Pi is a minimal terminal coding harness. From 0.74.0 until 0.78.1, Pi HTML exports render session Markdown into a static HTML file. It did not consistently reject unsafe Markdown link and image URL schemes. In versions with scheme filtering, C0 control characters in the URL scheme could bypass th...

CVE-2026-50178 Angular: Remote Code Execution via JSDoc Hover Command Injection in VS Code Angular Language Service Extension

The Angular Language Service VS Code Extension provides a rich editing experience for Angular templates. the client-side Angular Language Service VS Code extension configures the tooltip Markdown renderer with the isTrusted: true option located in client/src/client.ts. This setting instructs VS...

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:...

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:...

Insertion of Sensitive Information Into Sent Data

Overview @theia/ai-chat is a Theia - AI Chat Extension Affected versions of this package are vulnerable to Insertion of Sensitive Information Into Sent Data via the rendering of Markdown image tags in AI chat responses. An attacker can cause sensitive information from the workspace or conversatio...