CVE-2026-100635: siyuan
- Severity
- 8.2 (HIGH)
- Vendor
- SIYUAN-NOTE
- Affected versions
- 0 through before 3.8.4
- Fixed version
- 3.8.4
- Patch status
- Patched
- Published
- 2026-09-26T14:16:45.007
- Modified
- 2026-09-26T14:16:45.117
Why it matters
This matters because the affected product may be exploitable without valid credentials. Internet-facing deployments should be reviewed first.
Recommended admin actions
- Review and patch based on exposure, asset criticality, and business impact.
- Compare installed versions against the affected version range in the advisory.
Technical summary
SiYuan before v3.8.4 contains an authentication bypass vulnerability in the publish service where session cookies are issued without Secure or SameSite attributes over plaintext HTTP connections. An on-path attacker can observe a valid publish-visitor-session-id cookie from a Basic Auth exchange and replay it to access authenticated publish endpoints without knowing the account password.
View the official NVD record for CVE-2026-100635
CVE data is sourced from NVD/CNA records and optional enrichment. Validate against the vendor advisory before taking production action.
VULNERABILITY PULSE
211 RECORDS
SECURE FEED ACTIVE
| AFFECTED PRODUCT | ACTION | ||
|---|---|---|---|
| CVE-2026-97163 |
UP plugin for Joomla
Reporter: SECURITY
|
10
CRITICAL
|
VIEW RECORD |
| CVE-2026-18143 |
Request a Quote for WooCommerce
Reporter: SECURITY
|
9.8
CRITICAL
|
VIEW RECORD |
| CVE-2026-85984 |
miniOrange OTP Login, Verification and SMS Notifications
Reporter: SECURITY
|
9.8
CRITICAL
|
VIEW RECORD |
| CVE-2026-82901 |
Ultra Addons for Contact Form 7
Reporter: SECURITY
|
9.8
CRITICAL
|
VIEW RECORD |
| CVE-2026-94132 |
AcyMailing Enterprise extension for Joomla
Reporter: SECURITY
|
9.5
CRITICAL
|
VIEW RECORD |
| CVE-2026-100721 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
9.5
CRITICAL
|
VIEW RECORD |
| CVE-2026-100706 |
kyverno PATCH
Reporter: DISCLOSURE
|
9.4
CRITICAL
|
VIEW RECORD |
| CVE-2026-100714 |
froxlor PATCH
Reporter: DISCLOSURE
|
9.4
CRITICAL
|
VIEW RECORD |
| CVE-2026-100716 |
froxlor PATCH
Reporter: DISCLOSURE
|
9.4
CRITICAL
|
VIEW RECORD |
| CVE-2026-97160 |
UP plugin for Joomla
Reporter: SECURITY
|
9.4
CRITICAL
|
VIEW RECORD |
| CVE-2026-100720 |
froxlor PATCH
Reporter: DISCLOSURE
|
9.3
CRITICAL
|
VIEW RECORD |
| CVE-2026-94130 |
YouTube Gallery extension for Joomla
Reporter: SECURITY
|
9.3
CRITICAL
|
VIEW RECORD |
| CVE-2026-100606 |
Flowise
Reporter: DISCLOSURE
|
9.2
CRITICAL
|
VIEW RECORD |
| CVE-2026-100607 |
Flowise
Reporter: DISCLOSURE
|
9.2
CRITICAL
|
VIEW RECORD |
| CVE-2026-100684 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
9.2
CRITICAL
|
VIEW RECORD |
| CVE-2026-97161 |
UP plugin for Joomla
Reporter: SECURITY
|
9.2
CRITICAL
|
VIEW RECORD |
| CVE-2026-100835 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
9.1
CRITICAL
|
VIEW RECORD |
| CVE-2026-100683 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.9
HIGH
|
VIEW RECORD |
| CVE-2026-100722 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.9
HIGH
|
VIEW RECORD |
| CVE-2026-96524 |
MCP Server for WordPress PATCH
Reporter: CONTACT
|
8.8
HIGH
|
VIEW RECORD |
| CVE-2026-100676 |
stoatchat PATCH
Reporter: DISCLOSURE
|
8.8
HIGH
|
VIEW RECORD |
| CVE-2026-77203 |
Groups – Memberships and Access Control
Reporter: SECURITY
|
8.8
HIGH
|
VIEW RECORD |
| CVE-2026-100846 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.8
HIGH
|
VIEW RECORD |
| CVE-2026-100603 |
clawhub PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100608 |
Flowise
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100614 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100615 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100617 |
capgo.app
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100618 |
capgo.app
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100619 |
capgo.app
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100622 |
capgo.app
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100623 |
capgo.app
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100625 |
capgo.app
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100628 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100631 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100644 |
siyuan PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100656 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100657 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100660 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100661 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100662 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100663 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100664 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100665 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100669 |
grav PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100670 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100672 |
grav PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100682 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100689 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100690 |
hugo PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100692 |
hugo PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100700 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100711 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100847 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100852 |
Product identification pending
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100856 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100864 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100865 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.7
HIGH
|
VIEW RECORD |
| CVE-2026-100612 |
capgo.app
Reporter: DISCLOSURE
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100639 |
siyuan PATCH
Reporter: DISCLOSURE
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100640 |
siyuan PATCH
Reporter: DISCLOSURE
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100641 |
siyuan PATCH
Reporter: DISCLOSURE
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100645 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100646 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100671 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100680 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100686 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100693 |
hugo PATCH
Reporter: DISCLOSURE
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100740 |
DIR-895L
Reporter: CNA
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100838 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100844 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100857 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.6
HIGH
|
VIEW RECORD |
| CVE-2026-100633 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.5
HIGH
|
VIEW RECORD |
| CVE-2026-100643 |
siyuan PATCH
Reporter: DISCLOSURE
|
8.5
HIGH
|
VIEW RECORD |
| CVE-2026-100715 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.5
HIGH
|
VIEW RECORD |
| CVE-2026-100717 |
froxlor PATCH
Reporter: DISCLOSURE
|
8.5
HIGH
|
VIEW RECORD |
| CVE-2025-71423 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.5
HIGH
|
VIEW RECORD |
| CVE-2025-71425 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.5
HIGH
|
VIEW RECORD |
| CVE-2026-100840 |
Product identification pending
Reporter: DISCLOSURE
|
8.5
HIGH
|
VIEW RECORD |
| CVE-2026-100841 |
MONAI
Reporter: DISCLOSURE
|
8.5
HIGH
|
VIEW RECORD |
| CVE-2026-100843 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.5
HIGH
|
VIEW RECORD |
| CVE-2026-100845 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.5
HIGH
|
VIEW RECORD |
| CVE-2026-100673 |
grav PATCH
Reporter: DISCLOSURE
|
8.4
HIGH
|
VIEW RECORD |
| CVE-2026-100839 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.4
HIGH
|
VIEW RECORD |
| CVE-2026-100636 |
siyuan PATCH
Reporter: DISCLOSURE
|
8.3
HIGH
|
VIEW RECORD |
| CVE-2026-100637 |
siyuan PATCH
Reporter: DISCLOSURE
|
8.3
HIGH
|
VIEW RECORD |
| CVE-2026-100638 |
siyuan PATCH
Reporter: DISCLOSURE
|
8.3
HIGH
|
VIEW RECORD |
| CVE-2026-100653 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.3
HIGH
|
VIEW RECORD |
| CVE-2026-100678 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.3
HIGH
|
VIEW RECORD |
| CVE-2026-100685 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.3
HIGH
|
VIEW RECORD |
| CVE-2026-100703 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.3
HIGH
|
VIEW RECORD |
| CVE-2026-100704 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.3
HIGH
|
VIEW RECORD |
| CVE-2026-100705 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.3
HIGH
|
VIEW RECORD |
| CVE-2026-100707 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.3
HIGH
|
VIEW RECORD |
| CVE-2026-94131 |
AcyMailing extension for Joomla
Reporter: SECURITY
|
8.3
HIGH
|
VIEW RECORD |
| CVE-2026-97162 |
UP plugin for Joomla
Reporter: SECURITY
|
8.3
HIGH
|
VIEW RECORD |
| CVE-2026-100725 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.3
HIGH
|
VIEW RECORD |
| CVE-2026-100635 |
siyuan PATCH
Reporter: DISCLOSURE
|
8.2
HIGH
|
VIEW RECORD |
| CVE-2026-100652 |
vllm PATCH
Reporter: DISCLOSURE
|
8.2
HIGH
|
VIEW RECORD |
| CVE-2026-100702 |
Product identification pending PATCH
Reporter: DISCLOSURE
|
8.2
HIGH
|
VIEW RECORD |
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