CVE-2026-82233EPSS p32.2%

CVE-2026-82233CVE-2026-82233

Description

SiYuan before v3.8.1 contains a path traversal vulnerability in the asset.upload MCP tool that accepts arbitrary absolute file paths without workspace boundary validation. Attackers can induce the AI Agent to upload sensitive files such as SSH keys or credentials from outside the workspace into the asset directory through prompt injection.

Scoring

CVSS 5.7 ()
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
EPSS0.40% probability of exploitation · percentile 32.2% · 2026-10-05T12:00:23Z
Last modified2026-08-31
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.