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CVE-2026-34839: CORS Vulnerability in Glances

Apr 20, 2026 By Ephrim Holyson In Astra

The CVE-2026-34839 was discovered during a manual analysis of the application’s API and network behavior. This flaw is very dangerous on office/home networks where Glances is commonly run, and IPs are easy to find through simple scanning.

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Astra

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AI Penetration Testing: Protecting LLMs From Cyber Attacks

Apr 20, 2026 By David Ketler In Outpost 24

88% of organizations now regularly use artificial intelligence (AI) in at least one business function. While adoption of AI technologies has accelerated rapidly, security measures often lag. The rush to roll out AI has, in many cases, overshadowed essential testing and safety protocols. This is particularly a worry when AI and Large Language Models (LLMs) become deeply embedded within organizational workflows and systems in a way that most software isn’t.

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Outpost 24

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Claude Mythos Just Killed Exploitability as a Security Signal

Apr 19, 2026 By Seemplicity In Seemplicity

The game has changed. For years, security teams used exploitability to decide what to patch first. If a vulnerability had a known exploit, it went to the top of the list. If not, it waited. But with the arrival of next-gen AI models like Claude Mythos, that strategy is officially broken. In this video, we discuss how Claude Mythos has collapsed the barrier to building working exploits. What used to take real skill and significant time can now be weaponized in minutes. When everything is exploitable, exploitability becomes noise.

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Seemplicity

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Multiple Cross-Site Scripting (XSS) Vulnerabilities in Mailcow

Apr 17, 2026 By Jorian Woltjer In Aikido

Mailcow is a widely used self-hosted and open source email server that hosts everything you'd need to manage mailboxes yourself. To assess its security, we set up a local instance and ran our AI pentesting agents against it. We found three XSS vulnerabilities, including a critical vulnerability that allowed unauthenticated attackers to take over administrator accounts while looking at their logs in the UI. Gaining access to a mailbox can have a serious security impact.

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How Forward Helps You Respond to CVE-2025-53521 and the CISA KEV Listing for F5 BIG-IP APM

Apr 16, 2026 By Forward Networks In Forward Networks

CVE-2025-53521 was first disclosed by F5 in October 2025 as part of their quarterly security advisory cycle. At that point, it was classified as a denial-of-service vulnerability with a CVSS v4 score of 8.7. Many security teams logged it and moved on, reasonably treating it as a lower-priority item in an already full patch queue.

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Windows IKE Service Extensions Vulnerability Enables Remote Code Execution (CVE-2026-33824)

Apr 16, 2026 By Theklis Stefani In Sentrium

In April 2026, Microsoft disclosed and patched a critical remote code execution vulnerability affecting the Windows Internet Key Exchange Service Extensions. Tracked as CVE-2026-33824, the issue was addressed as part of Microsoft’s April 2026 Patch Tuesday release. The affected component forms part of the Windows IPsec and IKEv2 stack, which is widely used to provide secure network connectivity.

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Zero Day SharePoint Server Spoofing via Improper Input Validation

Apr 16, 2026 By foresiet In Foresiet

CVE-2026-32201 is a spoofing vulnerability in Microsoft SharePoint Server stemming from improper input validation. It permits an unauthenticated remote attacker to spoof trusted content and resources over the network. The flaw affects on-premises deployments of SharePoint Server 2016, 2019, and Subscription Edition. Exploitation has been observed in the wild as a zero-day prior to the April 2026 Patch Tuesday release.

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Emerging Threat: (CVE-2026-23869) React Server Components Denial of Service

Apr 15, 2026 By Igal Zeifman In CyCognito

CVE-2026-23869 is a denial of service vulnerability in React Server Components, caused by improper handling of cyclic data structures during deserialization of incoming HTTP requests. The vulnerability resides in the React Flight protocol's server-side reply handling, specifically in the createMap, createSet, and extractIterator functions within ReactFlightReplyServer.js. The vulnerability carries a CVSS v3.1 base score of 7.5 (High). Exploitation requires no authentication and no user interaction.

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CVE-2026-21643: Pre-Authentication SQL Injection in Endpoint Management Server Leading to Remote Code Execution

Apr 15, 2026 By foresiet In Foresiet

CVE-2026-21643 is a critical SQL injection vulnerability in the administrative web interface of FortiClient Endpoint Management Server version 7.4.4. It allows unauthenticated remote attackers to execute arbitrary SQL commands through specially crafted HTTP requests, primarily by injecting malicious payloads via the Site HTTP header.

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Foresiet

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Scaling Your Security Program to Match the Speed of Mythos

Apr 15, 2026 By Ravid Circus In Seemplicity

Anthropic’s Project Glasswing and the Claude Mythos model represents a fundamental change in the physics of cyber defense. With the gap between patch releases and weaponized exploits shrinking to hours, traditional manual security triage is now obsolete. Organizations must adopt AI-driven automated remediation.

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