CVE-2026-72812
Fixed in a distro release EPSS <1%CVSS 6.5
SiYuan versions before v3.7.4 contain a missing authorization vulnerability in the /api/ref/refreshBacklink endpoint that allows anonymous readers to trigger persistent server-side writes. Attackers can invoke the endpoint with an attacker-controlled block ID to flush transaction queues, scan all references globally, and enqueue database writes, bypassing read-only protections and enabling resource amplification attacks.
Products: siyuan-note siyuan
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Go | github.com/siyuan-note/siyuan/kernel | 0.0.0-20260723002528-7d273c271ce1 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| SUSE Linux Enterprise Server 16.0 | govulncheck-vulndb | 0.0.20260916T180043-160000.1.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | govulncheck-vulndb | 0.0.20260916T180043-160000.1.1 |
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260916T180043-160000.1.1 |