GHSA-ww86-c2qf-w8fw

Source

https://github.com/advisories/GHSA-ww86-c2qf-w8fw

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-ww86-c2qf-w8fw/GHSA-ww86-c2qf-w8fw.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-ww86-c2qf-w8fw

Withdrawn

2026-09-03T22:22:57Z

Published

2026-08-14T12:31:24Z

Modified

2026-09-03T22:30:08Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Summary

Duplicate Advisory: Missing authorization on refreshBacklink allows anonymous readers to trigger persistent server-side writes and unauthenticated resource amplification (publish mode)

Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-wgwx-479j-23vq. This link is maintained to preserve external references.

Original Description

SiYuan versions before v3.7.4 contain a missing authorization vulnerability in the /api/ref/refreshBacklink endpoint that allows anonymous readers to trigger persistent server-side writes. Attackers can invoke the endpoint with an attacker-controlled block ID to flush transaction queues, scan all references globally, and enqueue database writes, bypassing read-only protections and enabling resource amplification attacks.

Database specific

{
    "cwe_ids": [
        "CWE-862"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-03T22:22:57Z",
    "nvd_published_at": "2026-08-14T12:16:44Z",
    "severity": "MODERATE"
}

References

Affected packages

Go / github.com/siyuan-note/siyuan/kernel

Package

Name: github.com/siyuan-note/siyuan/kernel; View open source insights on deps.dev
Purl: pkg:golang/github.com/siyuan-note/siyuan/kernel

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Database specific

last_known_affected_version_range

"< 3.7.4"

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-ww86-c2qf-w8fw/GHSA-ww86-c2qf-w8fw.json"