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.
Exploitability
AV:NAC:LAT:PPR:LUI:NVulnerable System
VC:NVI:LVA:NSubsequent System
SC:NSI:NSA:N2.3/CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:NInput Validation