CVE-2026-35623CWE-307

OpenClaw < 2026.3.25 - Brute-Force Attack via Missing Webhook Password Rate Limiting

Medium · published April 9, 2026

CVSS v4.0
6.3
EPSS
1%
Percentile
42.8
In the wild
Unconfirmed
What it is

OpenClaw before 2026.3.25 contains a missing rate limiting vulnerability in webhook authentication that allows attackers to brute-force weak webhook passwords without throttling. Remote attackers can repeatedly submit incorrect password guesses to the webhook endpoint to compromise authentication and gain unauthorized access.

The record
Technical detail
CVSS v4.0
6.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00513 · 42.8th percentile
Weakness
CWE-307 · Improper Restriction of Excessive Authentication Attempts
Published
2026-04-09T21:26Z
EPSS history
Timeline
  • 09 APR 21:26Z
    OpenClaw < 2026.3.25 - Brute-Force Attack via Missing Webhook Password Rate Limiting
    cvelistv5