CVE-2026-5139

Mattermost versions 11.7.x slash command.. Mattermost Advisory ID: MMSA-2026-00644...

CVE-2026-5139 GitLab Plugin Allows Non-Admin Users to Modify Default Instance Configuration

Mattermost versions 11.7.x slash command.. Mattermost Advisory ID: MMSA-2026-00644...

CVE-2026-5139

Mattermost plugin vulnerability CVE-2026-5139 affects Mattermost versions 11.7.x ≤ 11.7.0, 11.6.x ≤ 11.6.2, 11.5.x ≤ 11.5.5, 10.11.x ≤ 10.11.17. The issue arises in the /gitlab connect command handler where administrator authorization is not enforced for the setDefaultInstance call, allowing any ...

EUVD-2026-38246

Mattermost versions 11.7.x slash command.. Mattermost Advisory ID: MMSA-2026-00644...

CVE-2026-5139 GitLab Plugin Allows Non-Admin Users to Modify Default Instance Configuration

Mattermost versions 11.7.x slash command.. Mattermost Advisory ID: MMSA-2026-00644...

CVE-2026-56423 MISP Core: Broken access control allows instance-wide unauthorized deletion of event reports and sharing groups via bulk deletion endpoints

MISP Core contained broken access-control checks in the bulk deletion flows for Event Reports and Sharing Groups. The affected deleteSelection handlers authorized deletion using broad role-level permissions instead of validating authorization for each selected object. For Event Reports,...

PT-2026-51304

Name of the Vulnerable Software and Affected Versions Mattermost version 11.7.0 Mattermost version 11.6.2 Mattermost version 11.5.5 Mattermost version 10.11.17 Description Improper authorization in the GitLab connect command handler allows any authenticated user to overwrite the global default...

Malicious code in n8n-nodes-security-test-poc (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector fa97d4701c29ef5305fa5b553ab560abd6db6cc33b72f99dc11621997b668f32 Package presents as an n8n community node but is an attack artifact. The node's execute in dist/SecurityTestNode.node.js queries AWS IMDSv1/v2...

K000161614: Out-of-band Security Notification (June 17, 2026)

Security Advisory Description On June 17, 2026, F5 announced the following security issues. This document is intended to serve as an overview of these vulnerabilities to help determine the impact to your F5 devices. You can find the details of each issue in the associated articles. High CVEs Medi...

CVE-2026-42357 Apache DolphinScheduler: Incorrect Authorization vulnerability allows users to access workflow instance information belonging to projects they do not have permission to access.

Incorrect Authorization vulnerability allows users to access workflow instance information belonging to projects they do not have permission to access. This issue affects Apache DolphinScheduler versions prior to 3.4.2. Users are recommended to upgrade to version 3.4.2, which fixes this issue...

Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : Nova vulnerability (USN-8434-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8434-1 advisory. It was discovered that Nova did not strip internal nova-prefixed scheduler hints supplied by users on instance creation. An attack...

CVE-2026-42357: Incorrect Authorization

Incorrect Authorization vulnerability allows users to access workflow instance information belonging to projects they do not have permission to access. This issue affects Apache DolphinScheduler versions prior to 3.4.2. Users are recommended to upgrade to version 3.4.2, which fixes this issue...

EUVD-2026-37505

Postiz is an AI social media scheduling tool. In versions prior to 2.21.8, the Skool integration callback signed an attacker-controlled JSON blob into a session-shape JWT using the application's JWTSECRET, and the auth middleware trusted every claim in that JWT without re-resolving the user from...

n8n: Merge Node SQL Mode Prototype Pollution

Impact An authenticated user with permission to create or modify workflows could pollute the sandbox used by the Merge node's SQL Query mode. Because the sandbox context was cached and reused across all workflow executions on the instance, prototype mutations introduced by one user's workflow...

USN-8434-1 nova vulnerability

It was discovered that Nova did not strip internal nova-prefixed scheduler hints supplied by users on instance creation. An attacker could possibly use this issue to bypass Placement resource claims and scheduling constraint enforcement...

Protection Mechanism Failure

Overview org.webjars.npm:dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Protection Mechanism Failure through the clearConfig function. An attacker can execute arbitrary scripts in a Trusted Types sink by influencing a previously...

CVE-2026-48708

OliveTin is affected by a race condition in the template engine. In versions up to 3000.0.0, a single shared text/template.Template instance (tpl) is used across all goroutines, and actions perform tpl.Parse(source) followed by t.Execute() without synchronization. Under concurrent ExecRequests, t...

CVE-2026-48708 OliveTin has a Concurrent Template Parsing Race Condition which Leads to Cross-Request Command Contamination

OliveTin gives access to predefined shell commands from a web interface. In versions 3000.0.0 and prior, the template engine uses a single shared text/template.Template instance tpl package-level variable in service/internal/tpl/templates.go across all goroutines. Every action execution calls...

CVE-2026-48708 OliveTin has a Concurrent Template Parsing Race Condition which Leads to Cross-Request Command Contamination

OliveTin gives access to predefined shell commands from a web interface. In versions 3000.0.0 and prior, the template engine uses a single shared text/template.Template instance tpl package-level variable in service/internal/tpl/templates.go across all goroutines. Every action execution calls...

CVE-2026-9669

A flaw was found in Python's bz2.BZ2Decompressor component. An attacker could provide specially crafted input that, when processed by an application reusing a decompressor object after an error, could lead to out-of-bounds writes in memory. This memory corruption could cause the application to...