CVE-2026-86022 VNote: Argument injection to arbitrary command execution via crafted note filename in external-program handling
Attackers can execute arbitrary commands by crafting note filenames with quotes, exploiting external program handling in VNote.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-86022?
CVE-2026-86022 is a high-severity command injection vulnerability in vnotex vnote, published on 13 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
VNote is a note-taking platform. Prior to 4.3.0, SessionConfig::ExternalProgram::fetchCommand wraps a note path in double quotes and substitutes it into a command string that QProcess::start(const QString&) reparses into arguments through ProcessUtils::startDetached. The automatic path in src/controllers/viewareacontroller.cpp and the Open With path in src/controllers/notebooknodecontroller.cpp both reach this sink. On Linux and macOS, an attacker-controlled double quote in a POSIX note filename can terminate the quoted path and add arguments to the victim's configured external program. If the configured program supports an argument that executes commands, such as the vim or gvim -c option, the injected arguments can execute arbitrary commands as the user. This issue is fixed in version 4.3.0.
Which versions are affected by CVE-2026-86022?
How do I fix CVE-2026-86022?
No fix has been published for CVE-2026-86022 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-86022 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86022 exists.
Sources
Also known as GHSA-6m2r-wm6v-c8qp.