CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
4Description
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.
Analysis
OpenClaw versions prior to 2026.2.21 are vulnerable to prototype pollution attacks via the /debug set endpoint, allowing authenticated attackers to inject reserved prototype keys (__proto__, constructor, prototype) and manipulate object prototypes to bypass command gate restrictions. The vulnerability requires authenticated access and has relatively low real-world exploitability due to high attack complexity, but presents a meaningful integrity risk for authorized users who may not be aware of this attack vector. …
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Remediation
During next maintenance window: Apply vendor patches when convenient. Vendor patch is available.
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-12736
GHSA-62f6-mrcj-v8h5