CVE-2026-116166: siyuan 3.6.0 to before 3.8.7

CVE-2026-116166. CVSS 3.1 base score 6.8 (GitHub Advisory Database).

Affected technology

siyuan · 3.6.0 to before 3.8.7
siyuan-note

Description’s affected range: before 3.8.7 accepts and persists the networkServeTLS setting but never enforces it

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Adjacent network · No privileges required · No user interaction required

What an attacker can do

Network-adjacent attackers can sniff the cleartext login flow and session cookie, which lacks the Secure attribute while responses omit HSTS, to hijack kernel API sessions. Vendor/CNA’s CVSS 4.0 assessment (base score 7.6/10) rates confidentiality and integrity impact as high; availability impact as none.

Published 25-Oct-2026 19:52 UTC

CWE: CWE-319
CCR priority: 27.2 /100 (P4)
CVSS 3.1: 6.8 /10 · CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N · GitHub Advisory Database
KEV: no

Provenance

GitHub Advisory Database · Source record · observed 2026-10-25 21:12:26.049299+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-25 19:51:06.643138+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-116166.html