CVE-2026-75917
XSS in SiYuan path-picker enables OS command execution on hover (pre-3.7.4).
Is CVE-2026-75917 being exploited?
Not confirmed. CVE-2026-75917 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.16% probability of exploitation in the next 30 days.
How severe is CVE-2026-75917?
CVE-2026-75917 is rated Critical. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-75917?
Yes. A fix has been recorded for CVE-2026-75917. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-75917 affect?
CVE-2026-75917 affects SiYuan < v3.7.4 (Electron desktop app), Windows, macOS, Linux. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-75917?
Update SiYuan to v3.7.4 or later; avoid opening/shared untrusted documents.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Arbitrary OS command execution (RCE) when a user hovers over a crafted document in the path-picker due to unescaped metadata + nodeIntegration.
Immediate action required
- affected< 3.7.4
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.