CVE-2026-47899

Arbitrary File Read, Write, Rename, and Delete in Logseq

HIGH
8.7
CVSS Score
Published: June 9, 2026 at 01:23 PM UTC
Updated: July 23, 2026 at 07:32 PM UTC
1 product affected across 1 vendorLogseq

Using logseq by logseq?

Get instant alerts when new vulnerabilities affect logseq - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.7
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 0.10.15

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Third Party Advisory
Source: cverecord
https://cert.pl/en/posts/2026/06/CVE-2026-9279/
Product
Source: cverecord
https://logseq.com/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHCERT-PL
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-749

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card