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Vulnerabilities

Vulnerability · GHSA-hg5w-8ppq-wpjq

Duplicate Advisory: SiYuan: A parser differential between the WebSocket keepalive exemption and the session quarantine allows unauthenticated access to the broadcast event stream,

Published Aug 16, 2026 · catalog updated Oct 23, 2026 · Duplicate Advisory: SiYuan: A

Open the advisory

Exploitation likelihood is not on this record for GHSA-hg5w-8ppq-wpjq. A missing EPSS score is not a low risk. Compare Duplicate Advisory: SiYuan: A with the linked advisory before you change production.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Duplicate Advisory: SiYuan: A).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Advisory link
Affected products
Go github.com/siyuan-note/siyuan/kernel

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-c8w8-3pqp-wr83. This link is maintained to preserve external references. ## Original Description SiYuan versions before v3.7.4 contain an authentication bypass vulnerability in the WebSocket endpoint caused by differential parsing of query parameters between authentication exemption and session quarantine checks. Unauthenticated attackers can craft a malicious WebSocket URI with duplicated query parameters to bypass access auth code validation and receive the live kernel event stream including document identifiers, titles, and operation logs.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Go github.com/siyuan-note/siyuan/kernelversion unspecified

How to fix GHSA-hg5w-8ppq-wpjq

  • Recommended remediation

    A patch or advisory reference is linked. Open the original publisher for availability by product version.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for GHSA-hg5w-8ppq-wpjq. A missing EPSS score is not a low risk. Compare Duplicate Advisory: SiYuan: A with the linked advisory before you change production.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-287: Improper Authentication. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 16, 2026 · Go Vulnerability Database

    Detected

    ## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-c8w8-3pqp-wr83. This link is maintained to preserve external references. ## Original Description SiYuan versions before v3.7.4 contain an authentication bypass vulnerability in the WebSocket endpoint caused by differential parsing of query parameters between authentication exemption and session quarantine chec

  2. Oct 23, 2026 · Go Vulnerability Database

    Withdrawn

    The advisory was withdrawn.

  3. Oct 23, 2026 · Go Vulnerability Database

    Updated

    ## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-c8w8-3pqp-wr83. This link is maintained to preserve external references. ## Original Description SiYuan versions before v3.7.4 contain an authentication bypass vulnerability in the WebSocket endpoint caused by differential parsing of query parameters between authentication exemption and session quarantine chec

Sources

  • Go Vulnerability DatabasePackage advisoryGHSA-hg5w-8ppq-wpjq

    Duplicate Advisory: SiYuan: A parser differential between the WebSocket keepalive exemption and the session quarantine allows unauthenticated access to the broadcast event stream, defeating the fix for GHSA-xp2m-98x8-rpj6

    osv.dev

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.