GHSA-9cqf-hhrq-7v45: github.com/siyuan-note/siyuan/kernel (CVE-2026-73608)

SiYuan: getAttributeViewSearchTarget returns database row content to anonymous readers with no publish-access check, reopening the class closed one day earlier at the adjacent route

CVSS 9.2 CriticalCriticalEPSS 0.0031 · 23rd percentile

Critical, because:

CVSS score 9.2: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 1 Oct 2026, 16:24 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

Package	Ecosystem	Affected	Fixed in
github.com/siyuan-note/siyuan/kernel	Go	>=0.0.0-20260726161145-9b8e8956f997, <0.0.0-20260812083335-251596fc0de2	0.0.0-20260812083335-251596fc0de2

Identifiers

GHSA-9cqf-hhrq-7v45 · CVE-2026-73608 · GO-2026-6632

Weakness (CWE)

CWE-862

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

GHSA-9cqf-hhrq-7v45 affects the SiYuan kernel Go module on development builds from version 0.0.0-20260726161145-9b8e8956f997 up to, but not including, 0.0.0-20260812083335-251596fc0de2, where the fix is listed. The /api/av/getAttributeViewSearchTarget endpoint has no read-only or publish-access check, so an anonymous reader in publish mode can search database rows, including rows the publish filters hide, and read matching content. Upgrade to 0.0.0-20260812083335-251596fc0de2 or later. The source says no released stable version is affected.

Written 1 Nov 2026.

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
9.2	Critical	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0031, the 23rd percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:11 UTC First seen by agentprime
31 Oct 2026, 14:11 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.