CVE-2026-48700 Code injection in PCManFM-Qt
Attackers can trigger code execution or bypass network restrictions by passing malicious file paths via D-Bus calls in PCManFM-Qt.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-48700?
CVE-2026-48700 is a critical code injection vulnerability in LXQt PCManFM-Qt, published on 22 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in all versions of PCManFM-Qt starting from 1.1.0. When a regular file's path is passed as a URI in an org.freedesktop.FileManager1.ShowFolders D-Bus method call, PCManFM-Qt delegates to a different program (based on the file type) without user confirmation. This could be used to achieve code execution or circumvent network namespace restrictions. NOTE: those outcomes are potentially unwanted by most users; however, the behavior of the product does comply with the applicable specification, and a simplistic solution (ensuring that the URI does not name a regular file) may have adverse consequences for I/O.
Weakness: CWE-913
Which versions are affected by CVE-2026-48700?
How do I fix CVE-2026-48700?
No fix has been published for CVE-2026-48700 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-48700 being exploited?
There is no known exploitation of CVE-2026-48700 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-48700, GHSA-j7mp-frq8-hwp3, UBUNTU-CVE-2026-48700.