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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Openclaw Openclaw
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
|
— |
2026.3.25
|
References 3
https://github.com/openclaw/openclaw/commit/5e08ce36d522a1c96df2bfe88e39303ae26…
disclosure@vulncheck.com
https://github.com/openclaw/openclaw/security/advisories/GHSA-xq8g-hgh6-87hv
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/openclaw-brute-force-attack-via-missing-we…
disclosure@vulncheck.com