CVE-2026-41399

EPSS 0.10%

OpenClaw: Gateway WebSocket Denial of Service via unbounded pre-auth upgrades

發布日:2026/3/31修改日:2026/4/28

描述

## Summary The gateway accepted unbounded concurrent unauthenticated WebSocket upgrades before allocating them to an authenticated session budget. ## Impact An unauthenticated network attacker could consume socket and worker capacity and disrupt WebSocket availability for legitimate clients. ## Affected Component `src/gateway/server-http.ts, src/gateway/server/preauth-connection-budget.ts` ## Fixed Versions - Affected: `<= 2026.3.24` - Patched: `>= 2026.3.28` - Latest stable `2026.3.28` contains the fix. ## Fix Fixed by commit `cb5f7e201f` (`gateway: cap concurrent pre-auth websocket upgrades`). Discovered by:Topsec AlphaLab (wang dong)

受影響套件(1)

CVSS 分數

來源版本嚴重程度向量
osvCVSS 4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

參考連結(3)

CVE-2026-41399 — OpenClaw: Gateway WebSocket Denial of Service via unbounded pre-auth upgrades · VulnScope