CVE-2026-27576— OpenClaw: ACP prompt-size checks missing in local stdio bridge could reduce responsiveness with very large inputs
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I. Basic Information for CVE-2026-27576
Vulnerability Information
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Vulnerability Title
OpenClaw: ACP prompt-size checks missing in local stdio bridge could reduce responsiveness with very large inputs
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenClaw 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenClaw是openclaw开源的一个智能人工助理。 OpenClaw 2026.2.17及之前版本存在资源管理错误漏洞，该漏洞源于ACP桥接器接受过大的提示文本块，可能导致本地ACP客户端处理异常输入时出现问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-27576
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Same Patch Batch · openclaw · 2026-02-21 · 6 CVEs total
| CVE-2026-27487 | 7.6 HIGH | OpenClaw: Prevent shell injection in macOS keychain credential write |
| CVE-2026-27488 | OpenClaw hardened cron webhook delivery against SSRF | |
| CVE-2026-27486 | OpenClaw: Process Safety - Unvalidated PID Kill via SIGKILL in Process Cleanup | |
| CVE-2026-27485 | OpenClaw affected by Stored XSS in Control UI via unsanitized assistant name/avatar in inl | |
| CVE-2026-27484 | OpenClaw Discord moderation authorization used untrusted sender identity in tool-driven fl |
IV. Related Vulnerabilities
Same product: openclaw
- CVE-2026-44118
OpenClaw < 2026.4.22 - Owner Context Spoofing via Bearer Tok - CVE-2026-44117
OpenClaw < 2026.4.20 - Server-Side Request Forgery in QQBot - CVE-2026-44116
OpenClaw < 2026.4.22 - Server-Side Request Forgery in Zalo P - CVE-2026-44115
OpenClaw < 2026.4.22 - Shell Expansion Bypass in Unquoted He - CVE-2026-44114
OpenClaw < 2026.4.20 - Environment Variable Namespace Collis
Same vendor: openclaw
- CVE-2026-44118
OpenClaw < 2026.4.22 - Owner Context Spoofing via Bearer Tok - CVE-2026-44116
OpenClaw < 2026.4.22 - Server-Side Request Forgery in Zalo P - CVE-2026-44117
OpenClaw < 2026.4.20 - Server-Side Request Forgery in QQBot - CVE-2026-44115
OpenClaw < 2026.4.22 - Shell Expansion Bypass in Unquoted He - CVE-2026-44114
OpenClaw < 2026.4.20 - Environment Variable Namespace Collis
Same weakness: CWE-400
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V. Comments for CVE-2026-27576
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