Description
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.
Published: 2026-10-25
Score: 7.6 High
EPSS: n/a
KEV: No
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Remediation

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Advisories

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History

Sun, 25 Oct 2026 13:45:00 +0000

Type Values Removed Values Added
Description 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.
Title SiYuan 3.6.0 before 3.8.7 Cleartext Transmission via Unenforced networkServeTLS Setting
First Time appeared B3log
B3log siyuan
Weaknesses CWE-319
CPEs cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*
Vendors & Products B3log
B3log siyuan
References
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 7.6, 'vector': 'CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

B3log Siyuan
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-25T13:20:09.700Z

Reserved: 2026-10-25T12:24:12.573Z

Link: CVE-2026-116166

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-25T14:16:55.517

Modified: 2026-10-25T14:16:55.673

Link: CVE-2026-116166

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses