PT-2026-35783 · Openclaw · Openclaw

Wang Dong · Published 2026-03-31 · Updated 2026-04-30 · CVE-2026-41399

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions OpenClaw versions prior to 2026.3.28

Description OpenClaw accepts unbounded concurrent unauthenticated WebSocket upgrades without pre-authentication budget allocation. This allows unauthenticated network attackers to exhaust socket and worker capacity, resulting in a denial of service that disrupts WebSocket availability for legitimate clients.

Recommendations Update to version 2026.3.28.

Fix

DoS

Resource Exhaustion

Allocation of Resources Without Limits

Weakness Enumeration

CWE-400

CWE-770

Related Identifiers

CVE-2026-41399

GHSA-F44P-C7W9-7XR7

Affected Products

Openclaw

References · 9

• https://osv.dev/vulnerability/GHSA-f44p-c7w9-7xr7 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-41399 · Security Note
• https://github.com/openclaw/openclaw · Note
• https://github.com/openclaw/openclaw/security/advisories/GHSA-f44p-c7w9-7xr7 · Patch, Vendor Advisory
• https://github.com/openclaw/openclaw/commit/cb5f7e201f3f86ad70e199ef850e636b4cc457ba · Note
• https://vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-pre-auth-websocket-upgrades · Note
• https://t.me/cveNotify/161596 · Telegram Post
• https://twitter.com/CVEnew/status/2049227520902381649 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2049337294058885248 · Twitter Post