PT-2026-35783 · Openclaw · Openclaw

Wang Dong · Published 2026-04-28 · Updated 2026-04-28 · CVE-2026-41399

Mitre

CVSS v3.1

7.5

High

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

OpenClaw before 2026.3.28 accepts unbounded concurrent unauthenticated WebSocket upgrades without pre-authentication budget allocation. Unauthenticated network attackers can exhaust socket and worker capacity to disrupt WebSocket availability for legitimate clients.

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2026-41399

Affected Products

Openclaw

References · 4

• https://github.com/openclaw/openclaw/security/advisories/GHSA-f44p-c7w9-7xr7 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-41399 · Security Note
• https://twitter.com/CVEnew/status/2049227520902381649 · Twitter Post
• https://vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-pre-auth-websocket-upgrades · Note