CVE-2026-59923

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, HTMLRenderer.safeurl does not block percent-encoded javascript URIs, allowing attacker-supplied Markdown links or images to bypass URL protections and execute script in rendered HTML. This issue is fixed in version...

CVE-2026-59923

CVE-2026-59923 affects Mistune, a Python Markdown parser. Before 3.3.0, HTMLRenderer.safe_url() does not block percent-encoded javascript URIs, allowing attacker-supplied Markdown links or images to bypass URL protections and execute script in rendered HTML. The issue is fixed in version 3.3.0. E...

CVE-2026-59923 Mistune: XSS via percent-encoded javascript URI bypass in safe_url()

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, HTMLRenderer.safeurl does not block percent-encoded javascript URIs, allowing attacker-supplied Markdown links or images to bypass URL protections and execute script in rendered HTML. This issue is fixed in version...

CVE-2026-59892 OpenTelemetry JavaScript: Denial of service in `JaegerPropagator` via unhandled exception on a malformed header

OpenTelemetry JavaScript is the OpenTelemetry JavaScript client. Prior to 2.9.0, @opentelemetry/propagator-jaeger decodes incoming uber-trace-id and uberctx- HTTP header values with decodeURIComponent without handling decode errors, allowing an unauthenticated remote attacker to send a malformed...

CVE-2026-59892 OpenTelemetry JavaScript: Denial of service in `JaegerPropagator` via unhandled exception on a malformed header

OpenTelemetry JavaScript is the OpenTelemetry JavaScript client. Prior to 2.9.0, @opentelemetry/propagator-jaeger decodes incoming uber-trace-id and uberctx- HTTP header values with decodeURIComponent without handling decode errors, allowing an unauthenticated remote attacker to send a malformed...

CVE-2026-59892 OpenTelemetry JavaScript: Denial of service in `JaegerPropagator` via unhandled exception on a malformed header

OpenTelemetry JavaScript is the OpenTelemetry JavaScript client. Prior to 2.9.0, @opentelemetry/propagator-jaeger decodes incoming uber-trace-id and uberctx- HTTP header values with decodeURIComponent without handling decode errors, allowing an unauthenticated remote attacker to send a malformed...

CVE-2026-59892

Summary: OpenTelemetry JavaScript’s JaegerPropagator (via @opentelemetry/propagator-jaeger) decodes uber-trace-id and uberctx-* headers with decodeURIComponent() without handling decode errors prior to 2.9.0, enabling an unauthenticated attacker to send a malformed percent-encoded value that resu...

CVE-2026-59868

js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 before 5.2.0, when merge keys are enabled, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where each mapping merges the previous one. This issue is fixed in...

CVE-2026-59870

CVE-2026-59870 affects js-yaml prior to 5.2.1. The YAML11_SCHEMA’s handling of the !!omap tag in omap.ts performs a linear duplicate-key scan on each insertion, causing O(n^2) CPU usage when yaml.load() parses crafted ordered-map documents. Red Hat and NVD entries confirm this results in CPU-inte...

CVE-2026-57439

CyberChef’s CVE-2026-57439 affects the Series Chart operation prior to version 11.2.0. The vulnerability arises when parsing user-supplied CSV, where proto can be used as a key, enabling prototype pollution. This can be chained with other operations (e.g., Parse UDP) to inject malicious JavaScrip...

CVE-2026-57439 CyberChef: Prototype pollution in Series Chart operation

CyberChef is a web app for encryption, encoding, compression, and data analysis. Prior to 11.2.0, the Series Chart operation accepts proto as a key while parsing user-supplied CSV, allowing prototype pollution that can be chained with operations such as Parse UDP to inject malicious JavaScript in...

CVE-2026-57439 CyberChef: Prototype pollution in Series Chart operation

CyberChef is a web app for encryption, encoding, compression, and data analysis. Prior to 11.2.0, the Series Chart operation accepts proto as a key while parsing user-supplied CSV, allowing prototype pollution that can be chained with operations such as Parse UDP to inject malicious JavaScript in...

CVE-2026-56359

n8n before 2.8.0 contains a cross-site scripting vulnerability in the credential management flow where authenticated users can inject malicious JavaScript URLs into OAuth2 credential Authorization URL fields. Attackers can craft malicious credentials and trick victims into clicking the OAuth...

EUVD-2026-42257

n8n before 2.8.0 contains a cross-site scripting vulnerability in the credential management flow where authenticated users can inject malicious JavaScript URLs into OAuth2 credential Authorization URL fields. Attackers can craft malicious credentials and trick victims into clicking the OAuth...

CVE-2026-57256

When the application opens a PDF and executes JavaScript, it performs abnormal operations on the list box field, and this operation is repeated after the form is reset. During this process, the application failed to adequately verify the validity of the form objects and their internal dictionary...

CVE-2026-57250

When the application opens a PDF and JavaScript resets the form fields, the script re-enters the interface. The underlying native object is damaged, but the application does not perform validation. The function call on the damaged object leads to the application crashing...

CVE-2026-57243

During the process of page opening and form formatting, a JavaScript reentrancy results in an inconsistent document status. Subsequently, with outdated page information, the application attempts to access invalid addresses, causing the application to crash...

CVE-2026-57244

After JavaScript resetting the form, the synchronization process lacks re-entry protection and object lifecycle verification, resulting in the failure of the control pointer during the traversal process. After the pointer fails, it still continues to dereference, causing the application to crash...

CVE-2026-57241

The application opens the PDF, and JavaScript performs operations on the page and the document, causing the page-related objects within the application to lose synchronization; however, the renderer still trusts the outdated page count, and eventually the application crashes due to out-of-bounds...

CVE-2026-57242

The application opens the PDF, and JavaScript modifies the form. However, the related objects on the page lack complete lifecycle management and null value validation; when the page state changes, the application continuously dereferences invalid objects, eventually leading to a crash...