What’s new in Microsoft Security: May 2026

At Microsoft, security innovations are purpose-built to help every organization protect end-to-end with the speed and scale of AI. Our vision is simple: security should be ambient and autonomous, just like the AI it protects. As organizations accelerate AI adoption, security teams are navigating...

Nuxt: Reflected XSS in `navigateTo()` external redirect

Summary navigateTo with external: true generates a server-side HTML redirect body containing a tag. The destination URL is only sanitized by replacing " with %22, leaving , &, and ' unencoded. An attacker who can influence the URL passed to navigateTourl, external: true can break out of the...

TYPO3 sf_register extension allows unauthorized assignment of frontend user groups

The create and edit flows in the TYPO3 extension sfregister do not restrict which user properties may be submitted, and do not enforce access control on the frontend user group assignment. As a result, an attacker can assign an arbitrary frontend user group to a newly registered or edited account...

CVE-2026-46721

The create and edit flows do not restrict which user properties may be submitted and do not enforce access control on the frontend user group assignment. As a result, an attacker can assign an arbitrary frontend user group to a newly registered or edited account, gaining unauthorized access to...

EUVD-2026-30688

A security vulnerability has been detected in Sanluan PublicCMS 5.202506.d. Impacted is the function TradeOrderController.pay/TradePaymentController.pay/AccountGatewayComponent.pay of the file publiccms-trade/src/main/java/com/publiccms/controller/web/trade/TradeOrderController.java of the...

AI Agents May Always Fall for Prompt Injections

Prompt injection is the most critical vulnerability in deployed AI agents. Despite recent progress, we show that the prevailing defense paradigm data-instruction separation both fails to detect attacks that operate through contextual manipulation and degrades contextually appropriate behavior. We...

CVE-2026-45675

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the LDAP and OAuth authentication flows use a TOCTOU Time-of-Check-Time-of-Use pattern for first-user admin role assignment. The regular signup handler signuphandler in auths.py, lin...

CVE-2026-45773

CVE-2026-45773 affects Turborepo’s self-hosted login and SSO browser flows. Before 2.9.14, the localhost callback did not validate the CSRF state value, allowing a malicious page to send a crafted request while the CLI waited for authentication. If accepted ahead of the legitimate callback, the C...

PT-2026-51507

Name of the Vulnerable Software and Affected Versions Flowise versions prior to 3.1.2 Description Multiple OS command injection flaws exist in the Custom MCP Server feature. An attacker with any account role or API access with view/update permissions for chatflows can execute arbitrary commands o...

Important: Red Hat Security Advisory: Network Observability 1.11.2 for OpenShift

Network Observability 1.11 for Red Hat OpenShift. Network flows collector and monitoring solution...

Extending Security to MCP Servers: Closing a Critical Gap

The Model Context Protocol MCP is a de facto standard for providing structured access to privileged systems for AI agents and external integrations. It acts as a USB-C port for AI, enabling faster innovation by allowing organizations to expose tools, resources, and workflows without the...

GHSA-492V-C6PP-MQQV Next.js has a Middleware / Proxy bypass through dynamic route parameter injection

Impact Applications that rely on middleware to protect dynamic routes can be vulnerable to authorization bypass. In affected deployments, specially crafted query parameters can alter the dynamic route value seen by the page while leaving the visible path unchanged, which can allow protected conte...

EUVD-2025-209762

Due to not validating the organization context when executing adaptive authentication flows, the WSO2 Identity Server allows adaptive authentication logic to be triggered on unintended organizations. A malicious actor with privileges to configure adaptive authentication within one organization ca...

Cross-site Scripting (XSS)

Overview netbox-data-flows is a NetBox plugin to document data flows between systems and applications. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the ObjectAlias.name field rendered in DataFlow tables. An attacker can execute arbitrary JavaScript in the brows...

World Passkey Day: Advancing passwordless authentication

World Passkey Day is a chance to reflect on progress toward a shared goal: reducing our reliance on passwords and other phishable authentication methods by accelerating passkey adoption. As cyberattacks become more automated and AI-powered, each account is only as secure as its weakest credential...

EUVD-2026-28194

OpenClaw before 2026.4.20 fails to properly reserve the OPENCLAW runtime-control environment namespace in workspace dotenv files, allowing attackers to override critical runtime variables. Malicious workspaces can set variables like OPENCLAWGITDIR to manipulate trusted OpenClaw runtime behavior...

CVE-2026-44114 OpenClaw < 2026.4.20 - Environment Variable Namespace Collision via Workspace dotenv

OpenClaw before 2026.4.20 fails to properly reserve the OPENCLAW runtime-control environment namespace in workspace dotenv files, allowing attackers to override critical runtime variables. Malicious workspaces can set variables like OPENCLAWGITDIR to manipulate trusted OpenClaw runtime behavior...

CVE-2026-43580 OpenClaw < 2026.4.10 - Incomplete Navigation Guard Coverage in Browser Interactions

OpenClaw before 2026.4.10 contains an incomplete navigation guard vulnerability that allows attackers to trigger navigation without complete SSRF policy enforcement. Browser press/type style interactions, including pressKey and type submit flows, can bypass post-action security checks to execute...

CVE-2026-43580 OpenClaw < 2026.4.10 - Incomplete Navigation Guard Coverage in Browser Interactions

OpenClaw before 2026.4.10 contains an incomplete navigation guard vulnerability that allows attackers to trigger navigation without complete SSRF policy enforcement. Browser press/type style interactions, including pressKey and type submit flows, can bypass post-action security checks to execute...

CVE-2026-43580

OpenClaw before 2026.4.10 contains an incomplete navigation guard vulnerability that allows attackers to trigger navigation without complete SSRF policy enforcement. Browser press/type style interactions, including pressKey and type submit flows, can bypass post-action security checks to execute...