Patch Tuesday, April 2026 Edition

Microsoft today pushed software updates to fix a staggering 167 security vulnerabilities in its Windows operating systems and related software, including a SharePoint Server zero-day and a publicly disclosed weakness in Windows Defender dubbed "BlueHammer." Separately, Google Chrome fixed its...

EUVD-2026-22685

Bridge versions 16.0.2, 15.1.4 and earlier are affected by a Divide By Zero vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application or render it unresponsive. Exploitation of this issue requires user interaction in that...

CVE-2026-34602 Chamilo LMS: IDOR in /api/course_rel_users Allows Unauthorized Enrollment of Arbitrary Users into Courses

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, the /api/courserelusers endpoint is vulnerable to Insecure Direct Object Reference IDOR, allowing an authenticated attacker to modify the user parameter in the request body to enroll any arbitrary user into...

CVE-2026-34161 Chamilo LMS: Stored XSS via Malicious File Upload in Social Post Attachments Leads to Arbitrary JavaScript Execution

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, a Stored Cross-Site Scripting XSS vulnerability exists in the social post attachment upload functionality, where an authenticated user can upload a malicious HTML file containing JavaScript via the...

EUVD-2026-22714

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, a Stored Cross-Site Scripting XSS vulnerability exists in the social post attachment upload functionality, where an authenticated user can upload a malicious HTML file containing JavaScript via the...

CVE-2026-34160

Chamilo LMS prior to 2.0.0-RC.3 is affected. The PENS plugin endpoint at public/plugin/Pens/pens.php allows unauthenticated access and accepts a user-controlled package-url that is fetched via curl without filtering private/internal IPs, enabling unauthenticated SSRF. Impact includes probing inte...

CVE-2026-33714

Chamilo is an open-source learning management system LMS. Version 2.0.0-RC.2 contains a SQL Injection vulnerability in the statistics AJAX endpoint, which is an incomplete fix for CVE-2026-30881. While CVE-2026-30881 was patched by applying Security::removeXSS to the datestart and dateend...

CVE-2026-27222

Bridge versions 16.0.2, 15.1.4 and earlier are affected by a Divide By Zero vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application or render it unresponsive. Exploitation of this issue requires user interaction in that...

Microsoft and Adobe Patch Tuesday, April 2026 Security Update Review

April 2026's Patch Tuesday arrives with Microsoft addressing a fresh set of vulnerabilities across its ecosystem, reinforcing the ongoing need for timely patching in an increasingly threat-heavy landscape. Here's a quick breakdown of what you need to know. Microsoft Patch Tuesday for April 2026...

GHSA-6QVV-PJ99-48QM @adonisjs/http-server has an Open Redirect vulnerability

Impact The response.redirect.back method in @adonisjs/http-server is vulnerable to open redirects. The method reads the Referer header from the incoming HTTP request and redirects to that URL without validating the host. An attacker who can influence the Referer header for example, by linking a...

CVE-2026-27312 Bridge | Heap-based Buffer Overflow (CWE-122)

Bridge versions 16.0.2, 15.1.4 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file...

CVE-2026-27222

Technical details (affected products, exact vulnerable components, root cause, and remediation) are not publicly provided in the supplied documents. Monitor for updates.

CVE-2026-27222 Bridge | Divide By Zero (CWE-369)

Bridge versions 16.0.2, 15.1.4 and earlier are affected by a Divide By Zero vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application or render it unresponsive. Exploitation of this issue requires user interaction in that...

CVE-2026-27222 Bridge | Divide By Zero (CWE-369)

Bridge versions 16.0.2, 15.1.4 and earlier are affected by a Divide By Zero vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application or render it unresponsive. Exploitation of this issue requires user interaction in that...

CVE-2026-27222

Bridge versions 16.0.2, 15.1.4 and earlier are affected by a Divide By Zero vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application or render it unresponsive. Exploitation of this issue requires user interaction in that...

EUVD-2025-209444

A SQL injection vulnerability exists in the School Management System version 1.0 by manikandan580. An unauthenticated or authenticated remote attacker can supply a crafted HTTP request to the affected endpoint to manipulate SQL query logic and extract sensitive database information...

netty: Netty: Denial of Service via HTTP/2 CONTINUATION frame flood

A flaw was found in Netty. A remote user can trigger a Denial of Service DoS against a Netty HTTP/2 server by sending a flood of CONTINUATION frames. The server's lack of a limit on these frames, coupled with a bypass of size-based mitigations using zero-byte frames, allows an attacker to consume...

netty: Netty: Denial of Service via HTTP/2 CONTINUATION frame flood

A flaw was found in Netty. A remote user can trigger a Denial of Service DoS against a Netty HTTP/2 server by sending a flood of CONTINUATION frames. The server's lack of a limit on these frames, coupled with a bypass of size-based mitigations using zero-byte frames, allows an attacker to consume...

CVE-2026-39811

A integer overflow or wraparound vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.3, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4 all versions, FortiWeb 7.2 all versions, FortiWeb 7.0 all versions may allow attacker to denial of service via...

CVE-2026-26155

creationtimestamp| type| source ---|---|--- 2026-04-14 15:49:19+00:00| seen| https://www.thezdi.com/blog/2026/4/14/the-april-2026-security-update-review 2026-04-15 06:53:38+00:00| seen| https://advisories.ncsc.nl/advisory?id=NCSC-2026-0119...