Vulnerability in github.com/siyuan-note/siyuan/kernel (CVE-2026-44588)
Summary
Vulnerability in github.com/siyuan-note/siyuan/kernel (CVE-2026-44588). Risk of unauthorized operations or information disclosure. Exploitable via getAttribute.
Original description
The description as published by the source.
Summary
The tooltip mouseover handler in app/src/block/popover.ts reads aria-label via getAttribute and passes it through decodeURIComponent before assigning to messageElement.innerHTML in app/src/dialog/tooltip.ts:41. The encoder used at the producer side, escapeAriaLabel in app/src/util/escape.ts:19-25, only handles HTML special characters (", ', <, literal <) — it leaves %XX URL-escapes untouched. So a doc title containing %3Cimg src=x onerror=...%3E round-trips through escapeAriaLabel and the HTML attribute layer unmodified. Then decodeURIComponent on the consumer side converts %3C to a literal < character (a real <, NOT a character reference). When that string is assigned to innerHTML, the HTML5 tokenizer enters TagOpenState on the literal <, parses the `` element, and the onerror handler fires.
Because the renderer runs with nodeIntegration: true, contextIsolation: false, webSecurity: false (app/electron/main.js:407-411), require('child_process') is reachable from the injected handler, escalating to arbitrary code execution.
Doc titles, AV column names + descriptions, AV select options, file-tree tooltips all reach this sink because they're rendered into class="ariaLabel" elements with aria-label="${escapeAriaLabel(...)}". Doc title is the easiest plant — any user with create/rename access lands the payload, and the file survives .sy.zip round-trip without modification.
Why a "double HTML-decode" frami…
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-44588 has been found in github.com/siyuan-note/siyuan/kernel.
Attackers can target a specific entry point like getAttribute over the network to misuse the product.
Risk of unauthorized operations or information disclosure.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "github.com/siyuan-note/siyuan/kernel CVE-2026-44588" on the vendor's site.
CVE-2026-44588 (github.com/siyuan-note/siyuan/kernel) — CWE-116
Attack surface: getAttribute / decodeURIComponent / messageElement.innerHTML / escapeAriaLabel
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-116) exists in github.com/siyuan-note/siyuan/kernel. Attackers reach the vulnerable code path via getAttribute.
Check the vendor advisory for the affected versions of github.com/siyuan-note/siyuan/kernel. Attack surface: getAttribute / decodeURIComponent / messageElement.innerHTML / escapeAriaLabel.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'github.com/siyuan-note/siyuan/kernel' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'github.com/siyuan-note/siyuan/kernel' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
github.com/siyuan-note/siyuan/kernelを grep し、稼働しているサービス・バージョンを把握する。 -
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory nvd.nist.gov
- package github.com
- web github.com
- web github.com