Arbitrary File Read, Write, Rename, and Delete in Logseq
CVE-2026-47899

8.7HIGH

Key Information:

Vendor

Logseq

Status
Logseq
Vendor
CVE Published:
9 June 2026

What is CVE-2026-47899?

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.

Affected Version(s)

logseq 0 <= 0.10.15

References

https://cert.pl/en/posts/2026/06/CVE-2026-9279/
third-party-advisory
https://logseq.com/
product

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Bartłomiej Dmitruk (striga.ai)
.