CVE-2026-27576 — OpenClaw: ACP prompt-size checks missing in local stdio bridge could reduce responsiveness with very large inputs
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 forw…
Published: 2026-02-21 · CVSS: 4.8 · CVSS 4.0
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: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7