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CVE-2026-74903: siyuan 0 to before 3.7.4
CVE-2026-74903. CVSS 3.1 base score 4.3 (MEDIUM, Vendor/CNA). EPSS 0.00288 (percentile 0.20178), scored 21-Oct-2026.
Affected technology
siyuan · 0 to before 3.7.4
siyuan-note
Description’s affected range: before v3.7.4
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required
What an attacker can do
Authenticated users with RoleEditor or RoleReader roles can invoke the endpoint to transform arbitrary DOM input, and large payloads cause endpoint starvation through per-path mutex serialization. Vendor/CNA’s CVSS 4.0 assessment (base score 5.3/10) rates confidentiality and availability impact as none; integrity impact as low.
- CWE
- CWE-400
- CCR priority
- 17.3 /100 (P5)
- CVSS 3.1
- 4.3 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N · Vendor/CNA
- EPSS
- 0.00288 · percentile 0.2022 · 2026-10-22
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-23 06:11:59.600832+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-23 06:11:01.814928+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-74903.html