CVE-2026-69084: github.com/siyuan-note/siyuan/kernel (Go)

Should you act?

Critical and remotely reachable

No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

Not in CISA KEV, but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
EPSS 1.6%, percentile 75: FIRST’s model estimates a 1.6% chance of exploitation activity in the next 30 days, higher than 75% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
Only applies if your dependency tree includes github.com/siyuan-note/siyuan/kernel (Go) < 0.0.0-20260721002947-23a17d44b5f3, fixed in 0.0.0-20260721002947-23a17d44b5f3. Check your lockfile, including transitive dependencies.

What it is

SiYuan versions

From the GitHub advisory

CVE: This vulnerability corresponds to CVE-2026-69084.

Summary

The /api/search/searchEmbedBlock endpoint passes a client-supplied SQL statement verbatim to the database with no validation. The endpoint is gated by CheckAuth only reachable by the publish RoleReader token, and by the anonymous account when Publish.Auth.Enable is false. The statement runs on the main read-write siyuan.db handle through a driver that executes stacked statements, with no single-statement or read-only guard. An unauthenticated request can therefore execute arbitrary SQL reading and writing content across all cleartext notebooks.

Unlike SQL injection into a fixed query, this endpoint accepts a full SQL statement by design and simply fails to restrict who may call it or what the statement may do.

Details

Weakness type: CWE-89.

Product: github.com/siyuan-note/siyuan/kernel (Go) · Assigned by: VulnCheck · Published: 2026-08-03

Affected and fixed versions

Ecosystem	Package	Vulnerable	First fixed
Go	`github.com/siyuan-note/siyuan/kernel`	< 0.0.0-20260721002947-23a17d44b5f3	0.0.0-20260721002947-23a17d44b5f3

Vendor	Product	Affected versions (per CVE record)
siyuan-note	siyuan	< 3.7.3

Severity scores

Scored by	CVSS	Score	Vector
VulnCheck	4.0	9.9 Critical	`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N`
VulnCheck	3.1	10 Critical	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N`
GitHub	3.1	10.0	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N`

Attack vector: network (remotely reachable)
Attack complexity: low
Attack requirements: none
Privileges required: none (no login)
User interaction: none

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
CISA SSVC assessment: exploitation poc, automatable yes, technical impact total.
FIRST EPSS (model of 2026-10-21): 1.57% probability of exploitation activity in the next 30 days; percentile 75.

Timeline

2026-08-03 — CVE record published by VulnCheck
2026-08-14 — CVE record last updated
2026-09-03 — GitHub-reviewed advisory GHSA-vh22-h7hf-www7 published (critical)

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.