Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
SiYuan (Go module github.com/siyuan-note/siyuan/kernel) versions before 3.6.0 are affected. An authenticated user can send the /api/network/forwardProxy endpoint a URL of their choosing, and the server will request it and return the full response body and headers, with no checks against internal networks, localhost, or cloud metadata services. Upgrade to version 3.6.0 or later. The source gives few details on workarounds.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.3 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0038, the 32nd percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 12 Mar 2026, 14:23 UTC Confirmed by GitHub Advisory Database
- 31 Oct 2026, 15:09 UTC First seen by agentprime
- 31 Oct 2026, 15:09 UTC Confirmed by OSV