CVE-2026-116166

SiYuan 3.6.0 before 3.8.7 accepts and persists the networkServeTLS setting but never enforces it, so the kernel port keeps serving full API access over plain HTTP alongside HTTPS. 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.

Score
CVSS 4.0 7.6 High
Status
Deferred - disclosure@vulncheck.com
Published
2026-10-25
Last modified
2026-10-25
Weaknesses
CWE-319

Affected products

References