JLine3 Telnet server: Unauthenticated Remote DoS via Unbounded Telnet NAWS Terminal Geometry

Summary The JLine3 Telnet server remote-telnet module does not apply an upper bound to terminal dimensions received via the Telnet NAWS Negotiate About Window Size option. An unauthenticated remote attacker can send a NAWS subnegotiation advertising a 65535×65535 terminal and repeatedly alternate...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the TelnetIO.handleNAWS method, which does not check for upper bounds on requested dimensions. An attacker can cause CPU exhaustion by large NAWS Negotiate About Window Size...

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...

Covert Storage Channel

Overview @anthropic-ai/claude-code is an Use Claude, Anthropic's AI assistant, right from your terminal. Claude can understand your codebase, edit files, run terminal commands, and handle entire workflows for you. Affected versions of this package are vulnerable to Covert Storage Channel via the...

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: 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: 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...

SUSE-SU-2026:2426-1 Security update for xwayland

This update for xwayland fixes the following issues: - CreateSaverWindow Use-After-Free Information Disclosure. bsc1266301 - Font Alias Stack-based Buffer Overflow. bsc1266294 - GLX ChangeDrawableAttributes Out-Of-Bounds Read/Write. bsc1266300 - XKB Key Types Stack-based Buffer Overflow. bsc12662...

Important: xorg-x11-server security, bug fix, and enhancement update

X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. Security Fixes: xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution du...

Important: xorg-x11-server security, bug fix, and enhancement update

X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. Security Fixes: xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution du...

CVE-2026-12348

CVE-2026-12348 concerns Arc Search for Android. The entry describes an address bar spoofing flaw caused by a window.open race condition, enabling a remote attacker to render attacker-controlled content while displaying a trusted domain in the address bar (phishing risk). The CVSSv3.1 vector is pr...

CVE-2026-8683 Overly long URLs crash the Mattermost Desktop App

Mattermost Desktop App versions =6.1 5.5.13.0 fail to account for attempting to open extremely long URLs in the Mattermost Desktop App which allows a malicious server owner to crash the application via including a script to call window.open on a very large URL. Mattermost Advisory ID:...

EUVD-2026-36732

Mattermost Desktop App versions =6.1 5.5.13.0 fail to account for attempting to open extremely long URLs in the Mattermost Desktop App which allows a malicious server owner to crash the application via including a script to call window.open on a very large URL. Mattermost Advisory ID:...

CVE-2026-8683 Overly long URLs crash the Mattermost Desktop App

Mattermost Desktop App versions =6.1 5.5.13.0 fail to account for attempting to open extremely long URLs in the Mattermost Desktop App which allows a malicious server owner to crash the application via including a script to call window.open on a very large URL. Mattermost Advisory ID:...

The vulnerability of the _XkbSetMapChecks() function in the Wayland protocol implementation for X.Org XWaylan, as well as in the X.Org Server implementation of the X Window System, allows a malicious actor to gain elevated privileges and cause service failures.

The vulnerability of the XkbSetMapChecks function in the Wayland protocol implementation for X.Org XWaylan, as well as in the X.Org Server implementation of the X Window System, is related to the execution of operations outside of the buffer in memory. Exploiting this vulnerability can allow...

ROS-20260615-73-0025

The vulnerabilities of the functions xfSetWindowMinMaxInfo and xfrailgetwindow in the RDP client FreeRDP are related to the use of memory after it is freed. Exploiting these vulnerabilities can allow a remote attacker to compromise the confidentiality, integrity, and accessibility of the protecte...

ROS-20260615-73-0018

The vulnerability of the xfAppUpdateWindowFromSurface function in the RDP client FreeRDP relates to the use of memory after it is freed. Exploiting this vulnerability could allow a remote attacker to compromise the confidentiality, integrity, and accessibility of the protected information...

ROS-20260615-73-0026

The vulnerabilities of the functions xfSetWindowMinMaxInfo and xfrailgetwindow in the RDP client FreeRDP are related to the use of memory after it is freed. Exploiting these vulnerabilities can allow a remote attacker to compromise the confidentiality, integrity, and accessibility of the protecte...

ROS-20260615-73-0017

The vulnerability of the xfAppUpdateWindowFromSurface function in the RDP client FreeRDP relates to the use of memory after it is freed. Exploiting this vulnerability could allow a remote attacker to compromise the confidentiality, integrity, and accessibility of the protected information...