CVE-2026-100637
SiYuan versions before v3.8.4 contain a path traversal vulnerability in the checkoutRepo endpoint…
- 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 checkoutRepo endpoint that allows authenticated administrators to write JSON files outside the workspace. Attackers can supply a sessionID parameter containing directory traversal sequences to overwrite arbitrary JSON files in pre-existing ker…
- 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 checkoutRepo endpoint that allows authenticated administrators to write JSON files outside the workspace. Attackers can supply a sessionID parameter containing directory traversal sequences to overwrite arbitrary JSON files in pre-existing kernel-writable directories outside workspace boundaries.
Last activity 26 Sep 2026. Patch Forecast updates every hour.