{"cve":"CVE-2026-72810","nvd":{"published":"2026-08-14T12:16:43.760","modified":"2026-08-26T17:04:11.547","status":"Deferred","description":"SiYuan versions before v3.7.4 contain a publish-boundary bypass vulnerability in WebSocket broadcast sessions that allows anonymous readers to receive unfiltered edits. Attackers can establish a WebSocket connection to the publish surface and passively receive real-time content events including password-protected and forbidden documents without authentication.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","score":9.2},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","score":8.6},"cwes":["CWE-862"],"references":["https://github.com/siyuan-note/siyuan/security/advisories/GHSA-mw8r-mw84-88v2","https://www.vulncheck.com/advisories/siyuan-before-publish-boundary-bypass-via-websocket","https://github.com/siyuan-note/siyuan/security/advisories/GHSA-mw8r-mw84-88v2"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:48:17.459049833+00:00"},"epss":{"cve":"CVE-2026-72810","score":0.00538,"percentile":0.453,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-mw8r-mw84-88v2","url":"https://osv.dev/vulnerability/GHSA-mw8r-mw84-88v2","summary":"SiYuan: Publish-boundary bypass via WebSocket broadcast: anonymous readers receive a live unfiltered feed of all edits including protected/forbidden documents (publish mode)","modified":"2026-09-10T15:25:58.885170311Z","packages":[{"ecosystem":"Go","name":"github.com/siyuan-note/siyuan/kernel","purl":"pkg:golang/github.com/siyuan-note/siyuan/kernel","ranges":["<0.0.0-20260723013612-ba948639d7f6"],"fixed":["0.0.0-20260723013612-ba948639d7f6"]}]},{"id":"GO-2026-6400","url":"https://osv.dev/vulnerability/GO-2026-6400","summary":"SiYuan: Publish-boundary bypass via WebSocket broadcast: anonymous readers receive a live unfiltered feed of all edits including protected/forbidden documents (publish mode) in github.com/siyuan-note/siyuan/kernel","modified":"2026-09-10T15:15:13.753424925Z","packages":[{"ecosystem":"Go","name":"github.com/siyuan-note/siyuan/kernel","purl":"pkg:golang/github.com/siyuan-note/siyuan/kernel","ranges":["<0.0.0-20260723013612-ba948639d7f6"],"fixed":["0.0.0-20260723013612-ba948639d7f6"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}