CVE-2026-47899 Arbitrary File Read, Write, Rename, and Delete in Logseq
Attackers with renderer code execution can read, write, or delete arbitrary files via insecure IPC handlers in Logseq.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-47899?
CVE-2026-47899 is a high-severity path traversal vulnerability in logseq, published on 9 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Electron preload script in Logseq exposes an API method that allows the renderer process to invoke IPC handlers without proper path validation. An attacker with JavaScript execution in the renderer (e.g. via XSS or a malicious plugin), can read, write, or delete arbitrary files on the user's system. While only version v0.10.15 was tested and confirmed as vulnerable, status of other versions is unknown since this issue was not addressed by a patch.
Weakness: CWE-749
Which versions are affected by CVE-2026-47899?
How do I fix CVE-2026-47899?
No fix has been published for CVE-2026-47899 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-47899 being exploited?
There is no known exploitation of CVE-2026-47899 in the wild and no public exploit code.
Sources
Also known as GHSA-jq3m-h4m5-r9j5.