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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-27576 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
CVSS-B 4.8 MEDIUM
Vector:  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

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/openclaw/openclaw/commit/63e39d7f57ac4ad4a5e38d17e7394ae7c4dd0b9c GitHub, Inc. Patch 
https://github.com/openclaw/openclaw/commit/8ae2d5110f6ceadef73822aa3db194fb60d2ba68 GitHub, Inc. Patch 
https://github.com/openclaw/openclaw/commit/ebcf19746f5c500a41817e03abecadea8655654a GitHub, Inc. Patch 
https://github.com/openclaw/openclaw/releases/tag/v2026.2.19 GitHub, Inc. Release Notes 
https://github.com/openclaw/openclaw/security/advisories/GHSA-cxpw-2g23-2vgw GitHub, Inc. Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-27576
NVD Published Date:
02/21/2026
NVD Last Modified:
02/23/2026
Source:
GitHub, Inc.