CVE-2026-100638
SiYuan versions before v3.8.4 contain a path traversal vulnerability in the setNotebookIcon…
- Risk score
- 54/100
- CVSS
- 7.6 v3.1
- Exploit chance (30 days)
- 0.5%
- Published
- 26 Sep 2026
Open in the live forecast Today's forecast
What to know
- What it is
- SiYuan versions before v3.8.4 contain a path traversal vulnerability in the setNotebookIcon endpoint that allows authenticated administrators to create arbitrary directory trees and write files outside the workspace boundary. Attackers can supply directory traversal sequences in the notebook parameter to escape the wo…
- Affected
- See advisory
- Fix
- Upgrade the product to 3.8.4 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.6 high
References
Original description
SiYuan versions before v3.8.4 contain a path traversal vulnerability in the setNotebookIcon endpoint that allows authenticated administrators to create arbitrary directory trees and write files outside the workspace boundary. Attackers can supply directory traversal sequences in the notebook parameter to escape the workspace data directory and write conf.json files to arbitrary locations accessible by the kernel process.
Last activity 26 Sep 2026. Patch Forecast updates every hour.