CVE-2026-29073: Github.com/siyuan note/siyuan/kernel SiYuan's Direct SQL Query API Vulnerability
MODERATECVE-2026-29073 is a MODERATE siyuan's direct sql query api vulnerability (CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')) affecting Github.com/siyuan note/siyuan/kernel libraries in the Go ecosystem. The issue involves siyuan's direct sql query api accessible to reader-level users enables unauthorized database access. Remediation is available in the latest vendor maintenance releases.
CVE-2026-29073 at a Glance
How to Fix CVE-2026-29073
To remediate this vulnerability, upgrade all affected Github.com/siyuan note/siyuan/kernel dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/siyuan-note/siyuan/kernel to Latest secure releaseRun the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/siyuan-note/siyuan/kernelHow to Check if You Are Affected
To determine whether your application is affected by CVE-2026-29073, inspect your project dependencies for Github.com/siyuan note/siyuan/kernel:
inspect dependencies for github.com/siyuan-note/siyuan/kernelAnalyze the terminal output to locate any version of Github.com/siyuan note/siyuan/kernel in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), where the product constructs all or part of an sql command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended sql command when it is sent to a downstream component. without sufficient removal or quoting of sql syntax in user-controllable inputs, the generated sql query can cause those inputs to be interpreted as sql instead of ordinary user data. In Github.com/siyuan note/siyuan/kernel, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-29073 Affected Github.com/siyuan note/siyuan/kernel Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/siyuan-note/siyuan/kernel
|
Go |
≤ 0.0.0-20260113130602-4ba64580c29c
|
|
References
Frequently Asked Questions
What is CVE-2026-29073?
Which Github.com/siyuan note/siyuan/kernel versions are affected?
What version fixes CVE-2026-29073?
Is github.com/siyuan-note/siyuan/kernel affected?
What CWE is associated with CVE-2026-29073?
How can I check Go dependencies for CVE-2026-29073?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-jqwg-75qf-vmf9",
"modified" : "2026-03-06T21:57:55Z",
"published" : "2026-03-03T21:17:58Z",
"aliases" : [ "CVE-2026-29073" ],
"summary" : "SiYuan's direct SQL Query API accessible to Reader-level users enables unauthorized database access",
"details" : "### Summary\n/api/query/sql allows users to run SQL directly, but it only checks basic auth, not admin rights, any logged-in user, even readers, can run any SQL query on the database.\n\n### Details\n\nThe vulnerable endpoint is in kernel/api/sql.go \n\n```go\nfunc SQL(c *gin.Context) {\n ret := gulu.Ret.NewResult()\n defer c.JSON(http.StatusOK, ret)\n\n arg, ok := util.JsonArg(c, ret)\n if !ok {\n return\n }\n\n stmt := arg[\"stmt\"].(string)\n result, err := sql.Query(stmt, model.Conf.Search.Limit) // ... runs arbitrary sql with no restrictions\n}\n```\n\nThe route in kernel/api/router.go only uses CheckAuth middleware\n\ne.g (similar)\n\n```go\nginServer.Handle(\"POST\", \"/api/query/sql\", model.CheckAuth, SQL)\n```\n\n### PoC\n\nStart SiYuan with the publish service turned on\n\n```bash\n\n# List out all tables in the database\n\ncurl -s -u reader_user:reader_pass \\\n -X POST \"http://127.0.0.1:6808/api/query/sql\" \\\n -H \"Content-Type: application/json\" \\\n -d '{\"stmt\": \"SELECT name, type FROM sqlite_master WHERE type='\"'\"'table'\"'\"'\"}'\n\n\n# Extract all user content from the database\n\ncurl -s -u reader_user:reader_pass \\\n -X POST \"http://127.0.0.1:6808/api/query/sql\" \\\n -H \"Content-Type: application/json\" \\\n -d '{\"stmt\": \"SELECT id, content FROM blocks\"}'\n\n```\n\n### Impact\n- High impact, reader users can query all data in the db including other users notes\n- SQL api is mostly for select queries, but without validation, writes can still happen\n- Malicious SQL can lead to serious performance issues\n\nthis is an auth bypass, the sql feature is for power users but even readers can use it",
"severity" : [ {
"type" : "CVSS_V4",
"score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/siyuan-note/siyuan/kernel"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"last_affected" : "0.0.0-20260113130602-4ba64580c29c"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-jqwg-75qf-vmf9"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-29073"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/siyuan-note/siyuan"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-862", "CWE-89" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2026-03-03T21:17:58Z",
"nvd_published_at" : "2026-03-06T08:16:26Z"
}
}