EUVD-2026-39905

Notepad++ is a free and open-source source code editor. From 8.9.4 until 8.9.6, Notepad++ contains a local privilege escalation vulnerability in the installer. During installation, the installer invokes powershell.exe without using an absolute path after setting the working directory to the...

CVE-2026-46710 Notepad++: Privilege Escalation in the Installer via Uncontrolled Executable Search Path

Notepad++ is a free and open-source source code editor. From 8.9.4 until 8.9.6, Notepad++ contains a local privilege escalation vulnerability in the installer. During installation, the installer invokes powershell.exe without using an absolute path after setting the working directory to the...

CVE-2026-46710 Notepad++: Privilege Escalation in the Installer via Uncontrolled Executable Search Path

Notepad++ is a free and open-source source code editor. From 8.9.4 until 8.9.6, Notepad++ contains a local privilege escalation vulnerability in the installer. During installation, the installer invokes powershell.exe without using an absolute path after setting the working directory to the...

CVE-2026-46710

Notepad++ is affected by a local privilege escalation vulnerability in the installer (CVE-2026-46710) detected in versions 8.9.4–8.9.6. During installation, the installer launches powershell.exe without an absolute path after setting the working directory to the installation contextMenu directory...

CVE-2026-48800

Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, the tag text content inside in shortcuts.xml is read by NppXml::valueaNode Parameters.cpp:3658 in the feedUserCmds function and stored in UserCommand.cmd without any validation. When the user clicks the corresponding entry ...

CVE-2026-48800 Notepad++: Arbitrary Code Execution via shortcuts.xml UserCommand Injection

Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, the tag text content inside in shortcuts.xml is read by NppXml::valueaNode Parameters.cpp:3658 in the feedUserCmds function and stored in UserCommand.cmd without any validation. When the user clicks the corresponding entry ...

EUVD-2026-39904

Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, the tag text content inside in shortcuts.xml is read by NppXml::valueaNode Parameters.cpp:3658 in the feedUserCmds function and stored in UserCommand.cmd without any validation. When the user clicks the corresponding entry ...

CVE-2026-48800 Notepad++: Arbitrary Code Execution via shortcuts.xml UserCommand Injection

Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, the tag text content inside in shortcuts.xml is read by NppXml::valueaNode Parameters.cpp:3658 in the feedUserCmds function and stored in UserCommand.cmd without any validation. When the user clicks the corresponding entry ...

CVE-2026-48800 Notepad++: Arbitrary Code Execution via shortcuts.xml UserCommand Injection

Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, the tag text content inside in shortcuts.xml is read by NppXml::valueaNode Parameters.cpp:3658 in the feedUserCmds function and stored in UserCommand.cmd without any validation. When the user clicks the corresponding entry ...

CVE-2026-52884 Notepad++: CVE-2026-48800 Bypass

Notepad++ is a free and open-source source code editor. In v8.9.6.1, isInTrustedDirectory does NOT canonicalize the path before checking. It uses a prefix-based check PathIsPrefix or equivalent that matches paths starting with trusted directory strings. A path traversal using ....\ after a truste...

CVE-2026-52884

Notepad++ is a free and open-source source code editor. In v8.9.6.1, isInTrustedDirectory does NOT canonicalize the path before checking. It uses a prefix-based check PathIsPrefix or equivalent that matches paths starting with trusted directory strings. A path traversal using ....\ after a truste...

CVE-2026-52884 Notepad++: CVE-2026-48800 Bypass

Notepad++ is a free and open-source source code editor. In v8.9.6.1, isInTrustedDirectory does NOT canonicalize the path before checking. It uses a prefix-based check PathIsPrefix or equivalent that matches paths starting with trusted directory strings. A path traversal using ....\ after a truste...

CVE-2026-52884 Notepad++: CVE-2026-48800 Bypass

Notepad++ is a free and open-source source code editor. In v8.9.6.1, isInTrustedDirectory does NOT canonicalize the path before checking. It uses a prefix-based check PathIsPrefix or equivalent that matches paths starting with trusted directory strings. A path traversal using ....\ after a truste...

EUVD-2026-39903

Notepad++ is a free and open-source source code editor. In v8.9.6.1, isInTrustedDirectory does NOT canonicalize the path before checking. It uses a prefix-based check PathIsPrefix or equivalent that matches paths starting with trusted directory strings. A path traversal using ....\ after a truste...

CVE-2026-52884

Notepad++ CVE-2026-52884 affects Notepad++ up to version 8.9.6.1 where isInTrustedDirectory() does not canonicalize paths before checking. The code uses a prefix-based trust check (PathIsPrefix or equivalent), allowing a path traversal like ....\ after a trusted directory prefix to resolve to an ...

CVE-2026-46710: Untrusted Search Path

Notepad++ is a free and open-source source code editor. From 8.9.4 until 8.9.6, Notepad++ contains a local privilege escalation vulnerability in the installer. During installation, the installer invokes powershell.exe without using an absolute path after setting the working directory to the...

PT-2026-52973

Name of the Vulnerable Software and Affected Versions Notepad++ versions prior to 8.9.6.4 Description A Time-of-Check to Time-of-Use TOCTOU flaw exists in NppCommands.cpp. The application validates the HMAC of the shortcuts.xml file on disk when a user command is triggered, but it executes the...

CVE-2026-48778: Improper Neutralization of Special Elements used in an OS Command

Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, the tag in config.xml is read by NppXml::value Parameters.cpp:6430 and stored in nppGUI.commandLineInterpreter without any validation, whitelist, or digital signature check. When the user triggers IDMFILEOPENCMD File → Open...

PT-2026-52972

Name of the Vulnerable Software and Affected Versions Notepad++ versions 8.9.4 through 8.9.5 Description The installer contains a local privilege escalation issue. During the installation process, the installer invokes powershell.exe without specifying an absolute path after setting the working...

CVE-2026-52884: Path Equivalence: 'filename.' (Trailing Dot)

Notepad++ is a free and open-source source code editor. In v8.9.6.1, isInTrustedDirectory does NOT canonicalize the path before checking. It uses a prefix-based check PathIsPrefix or equivalent that matches paths starting with trusted directory strings. A path traversal using ....\ after a truste...