MEDIUMCVSS 6.9EPSS 0.3%

CVE-2026-72812

CVE-2026-72812 updated by NVD

Published: 2026-09-03
Modified: 2026-09-03
EPSS percentile: 20%
Sources: github-advisory, nvd

Summary

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.

Affected packages

Ecosystem	Package	Affected versions	Fixed versions
Go	github.com/siyuan-note/siyuan/kernel	—	0.0.0-20260723002528-7d273c271ce1

Remediation: Upgrade to 0.0.0-20260723002528-7d273c271ce1 or later.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-72812

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.