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CVE-2026-33203
7.5 HIGH
- CVSS version: 3.1
- Attack vector (AV): NETWORK
- Attack complexity (AC): LOW
- Privileges required (PR): NONE
- User interaction (UI): NONE
- Scope (S): UNCHANGED
- Confidentiality impact (C): NONE
- Integrity impact (I): NONE
- Availability impact (A): HIGH
SiYuan has an Unauthenticated WebSocket DoS via Auth Keepalive Bypass
SiYuan is a personal knowledge management system. Prior to version 3.6.2, the SiYuan kernel WebSocket server accepts unauthenticated connections when a specific "auth keepalive" query parameter is present. After connection, incoming messages are parsed using unchecked type assertions on attacker-controlled JSON. A remote attacker can send malformed messages that trigger a runtime panic, potentially crashing the kernel process and causing denial of service. Version 3.6.2 fixes the issue.
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-3g9h-9hp4-654v x_refsource_CONFIRM
Affected products
siyuan
- ==< 3.6.2
Matching in nixpkgs
Package maintainers
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@TomaSajt TomaSajt
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@L-Trump Luo Chen <ltrump@163.com>