{"id":"ghsa-ghsa-c8w8-3pqp-wr83","seq":544315,"kind":"advisory","title":"SiYuan: A parser differential between the WebSocket keepalive exemption and the session quarantine allows unauthenticated access to the broadcast event stream","url":"https://github.com/advisories/GHSA-c8w8-3pqp-wr83","permalink":"https://vulnpulse.app/items/ghsa-ghsa-c8w8-3pqp-wr83","summary":"影響: go:github.com/siyuan-note/siyuan/kernel < 0.0.0-20260731131820-67bc300b6ea6 → 0.0.0-20260731131820-67bc300b6ea6\nTwo checks on the same WebSocket request URI parse it differently. The authentication exemption for keepalive sessions matches raw substrings, while the quarantine introduced to contain those sessions reads a parsed query parameter. Because Go's url.Values.Get returns only the first value for a repeated key, a single URI can satisfy the exemption and still resolve to a non-auth session identity. The result is that an unauthenticated remote caller connects to the kernel WebSocket with a valid ac…","severity":"high","techs":["go","github"],"cves":["CVE-2026-73054"],"tags":["GHSA-c8w8-3pqp-wr83","github.com/siyuan-note/siyuan/kernel"],"source":{"id":"ghsa","name":"GitHub Advisory Database"},"published_at":"2026-10-23T18:34:09.000Z","fetched_at":"2026-10-23T18:42:53.259Z"}