OpenClaw versions prior to 2026.2.21 accept prototype-reserved keys in runtime /debug set override object values, allowing prototype pollution attacks. Authorized /debug set callers can inject __proto__, constructor, or prototype keys to manipulate object prototypes and bypass command gate restrictions.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No 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:*:*
|
— |
2026.2.21
|
References 3
https://github.com/openclaw/openclaw/commit/fbb79d4013000552d6a2c23b9613d8b3cb9…
disclosure@vulncheck.com
https://github.com/openclaw/openclaw/security/advisories/GHSA-62f6-mrcj-v8h5
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/openclaw-prototype-pollution-via-debug-ove…
disclosure@vulncheck.com