Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in syncchangecounter()

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X.Org Server SyncAwaitFence Use-After-Free Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of...

EUVD-2026-35129

A flaw was found in 389 Directory Server. The Content Synchronization persistent search plugin allows unbounded memory growth when an authenticated client stops reading sync responses, enabling denial of service. Additional race conditions in plugin thread lifecycle can cause crashes during...

CVE-2026-46314

In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Reject empty multisync extension to prevent infinite loop v3dgetextensions walks a userspace-provided singly-linked list of ioctl extensions without any bound on the chain length. A local user can craft a self-referentia...

VerdantBamboo Deploys BSD Variant of BRICKSTORM on Linux Appliances

A China-nexus cyber espionage group has been observed deploying a BSD variant of a known backdoor called BRICKSTORM, as well as two other malware families codenamed PLENET aka GRIMBOLT and AGENTPSD to target Linux systems. The activity has been attributed by Volexity to a threat cluster it tracks...

Important: xorg-x11-server

Issue Overview: A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but...

Important: xorg-x11-server-Xwayland

Issue Overview: A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but...

TencentOS Server 4: xorg-x11-server (TSSA-2026:0294)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0294 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities...

Amazon Linux 2 : xorg-x11-server, --advisory ALAS2-2026-3336 (ALAS-2026-3336)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3336 advisory. A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer...

CVE-2026-2500

The Quick Playground plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 1.3.4. This is due to the qckplydata function passing the user-supplied filename POST parameter directly to filegetcontents without any validation, sanitization, or path restriction. Th...

CVE-2026-11034

An insufficient validation of untrusted input flaw was found in the Tab Group Sync component of the Chromium browser. Upstream bugs: https://code.google.com/p/chromium/issues/detail?id=497934980...

SUSE CVE-2026-11034

Insufficient validation of untrusted input in Tab Group Sync in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker to inject arbitrary scripts or HTML UXSS via malicious network traffic. Chromium security severity: Medium...

CVE-2026-2500

The Quick Playground plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 1.3.4. This is due to the qckplydata function passing the user-supplied filename POST parameter directly to filegetcontents without any validation, sanitization, or path restriction. Th...

CVE-2026-7721

A security vulnerability has been detected in Totolink WA300 5.2cu.7112B20190227. This affects the function NTPSyncWithHost of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument hostTime leads to command injection. The attack can be executed remotely. The exploit has been disclosed...

CVE-2026-42471

Unsafe deserialization vulnerability in MixPHP Framework 2.x thru 2.2.17. The sync-invoke client Connection.php:76 calls unserialize on data received from the server response, enabling client-side RCE if connecting to a malicious server...

CVE-2026-34066

nimiq-blockchain provides persistent block storage for Nimiq's Rust implementation. Prior to version 1.3.0, HistoryStore::puthistorictxns uses an assert! to enforce invariants about HistoricTransaction.blocknumber must be within the macro block being pushed and within the same epoch. During histo...

CVE-2026-6670

The Media Sync plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 1.4.9 via the 'subdir' and 'mediaitems' parameters. This is due to insufficient validation of user-supplied file paths, which are not checked for directory traversal sequences or restricted t...

CVE-2026-28759

Mattermost versions 11.5.x = 11.5.1, 10.11.x = 10.11.13, 11.4.x = 11.4.3 fail to validate that a remote cluster has access to a channel before processing membership removal requests during shared channel membership sync, which allows a malicious remote cluster to remove any user from any channel,...

CVE-2026-1830

The Quick Playground plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.3.1. This is due to insufficient authorization checks on REST API endpoints that expose a sync code and allow arbitrary file uploads. This makes it possible for unauthenticated...

CVE-2026-42297

A flaw was found in Argo Workflows. The Sync Service's ConfigMap-backed provider performs zero authorization checks on all create, read, update, and delete operations. This allows any authenticated user, including those using fake Bearer tokens, to manipulate Kubernetes ConfigMaps containing...