xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free in FreeCounter()

A use-after-free flaw was found in the X.Org X server and Xwayland in FreeCounter. A client that sets up multiple SyncCounters and awaits on those triggers can trigger a use-after-free when destroying those counters via a second client connection. This may be used to crash the server, or for...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free information disclosure in CreateSaverWindow()

A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow. A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: out-of-bounds heap write in DRI2 DRIGetBuffers/DRIGetBuffersWithFormat

An out-of-bounds write flaw was found in the X.Org X server and Xwayland in DRIGetBuffers/DRIGetBuffersWithFormat. A client that requests multiple DRI2BufferBackLeft attachments and one DRI2BufferFrontLeft can trigger an out-of-bounds heap write. This may be used to crash the server, or for...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB key types due to unchecked shift levels

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. The X server has multiple stack buffers sized XkbMaxShiftLevel XkbNumKbdGroups but CheckKeyTypes does not verify or clamp non-canonical key types to XkbMaxShiftLevel. A client can change key types to excessive shift...

ALSA-2026:38488 Important: xorg-x11-server-Xwayland security update

Xwayland is an X server for running X clients under Wayland. Security Fixes: xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and other related information, refer to th...

ROS-20260713-73-0028

The vulnerability of the crc32combine64 and crc32combinegen64 functions in the open-source data compression library zlib relates to the fact that the x2nmodp function may perform right shifts within a loop without a termination condition. Exploiting this vulnerability could allow an attacker to...

[SECURITY] Fedora 44 Update: xorg-x11-server-21.1.24-1.fc44

X.Org X11 X server...

PT-2026-57459

A heads up that there are a ton of CVEs being patched for July 2026 June was also high. So many that they released the "hot fix" patches in June and still have not updated the Android Patch notes. Could just be 4th of July holiday, but they are an international firm. No previous delays as long...

FTP Fetch, Windows shellcode stage, Windows x64 Bind TCP Stager

Fetch and execute an x64 payload from an FTP server. Custom shellcode stage. Listen for a connection Windows x64 Module Options This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework module MetasploitModule include...

CVE-2026-15302

The ARMember plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.0.27 via the 'X-FILENAME' HTTP header. This makes it possible for unauthenticated attackers to upload and overwrite certain files e.g., CSS to directories outside the...

CVE-2026-15302

The ARMember plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.0.27 via the 'X-FILENAME' HTTP header. This makes it possible for unauthenticated attackers to upload and overwrite certain files e.g., CSS to directories outside the...

EUVD-2026-42792

The ARMember plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.0.27 via the 'X-FILENAME' HTTP header. This makes it possible for unauthenticated attackers to upload and overwrite certain files e.g., CSS to directories outside the...

CVE-2026-15302 ARMember <= 4.0.27 - Directory Traversal via X-FILENAME

The ARMember plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.0.27 via the 'X-FILENAME' HTTP header. This makes it possible for unauthenticated attackers to upload and overwrite certain files e.g., CSS to directories outside the...

CVE-2026-15302

The ARMember plug-in for WordPress (affected: all versions up to and including 4.0.27) is vulnerable to Directory Traversal via the X-FILENAME HTTP header. Unauthenticated attackers can upload and overwrite certain files (e.g., CSS) outside the wp-content/uploads/armember directory. This is a net...

[SECURITY] Fedora 44 Update: xorg-x11-server-Xwayland-24.1.13-1.fc44

Xwayland is an X server for running X clients under Wayland...

EulerOS 2.0 SP12 : xorg-x11-server (EulerOS-SA-2026-2637)

According to the versions of the xorg-x11-server packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the...

CVE-2026-58122 Hermes WebUI < 0.51.307 Authentication Bypass via X-Forwarded-For Header Spoofing

Hermes WebUI before 0.51.307 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to circumvent local-origin IP restrictions on onboarding endpoints by supplying a spoofed X-Forwarded-For header with a loopback address. Attackers can exploit this bypass to...

golang.org/x/crypto/ssh: golang: golang.org/x/crypto/ssh: Denial of Service via crafted SSH certificate

A flaw was found in golang.org/x/crypto/ssh. SSH servers configured to use CertChecker as a public key callback, without explicitly setting IsUserAuthority or IsHostAuthority, are vulnerable. A remote attacker can exploit this by presenting a specially crafted certificate, causing the server to...

CVE-2026-59224

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, backend/openwebui/routers/terminals.py built the wsterminal upstream URL from an unencoded sessionid and appended userid as a query parameter, allowing query injection to make the terminal backe...

RHSA-2026:36798 Red Hat Security Advisory: xorg-x11-server-Xwayland security update

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