SB2026091217 - Resource exhaustion in OpenClaw



SB2026091217 - Resource exhaustion in OpenClaw

Published: September 12, 2026

Security Bulletin ID SB2026091217
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Partial DoS

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Resource exhaustion (CVE-ID: N/A)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled resource consumption in the Browser extension relay\'s global pending-authentication pool when processing unauthenticated WebSocket upgrades. A remote attacker can reserve all pending authentication slots before proving possession of the relay key to cause a denial of service.

Paired Chrome extensions cannot complete Browser Relay Authentication v2 while the pending-authentication capacity is saturated.


Remediation

Install update from vendor's website.