CVE-2026-27576
Plain English Summary
AI-powered analysis for quick understanding
This vulnerability allows an attacker to crash the OpenClaw AI assistant by sending it excessively large text inputs, which can overwhelm the system. It mainly affects local clients, like those integrated into development environments, and has been fixed in the latest version.
Technical Description
OpenClaw is a personal AI assistant. In versions 2026.2.17 and below, the ACP bridge accepts very large prompt text blocks and can assemble oversized prompt payloads before forwarding them to chat.send. Because ACP runs over local stdio, this mainly affects local ACP clients (for example IDE integrations) that send unusually large inputs. This issue has been fixed in version 2026.2.19.
CVSS Vector Analysis
Vector String
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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:XExploit Resources
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Official References
Quick Information
Published
Feb 21, 2026
about 2 months ago
Last Modified
Feb 23, 2026
about 1 month ago
Vendor
openclaw
Product
openclaw
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