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NVD Vulnerability Details :
CVE-2026-27576
Analyzed
More InfoOfficial Page
Source-security-advisories@github.com
View Known Exploited Vulnerability (KEV) details
Published At-21 Feb, 2026 | 10:16
Updated At-23 Feb, 2026 | 20:39

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.04.8MEDIUM
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:X
Primary3.14.0MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Type: Secondary
Version: 4.0
Base score: 4.8
Base severity: 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/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
Type: Primary
Version: 3.1
Base score: 4.0
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CPE Matches
OpenClaw
openclaw
>>openclaw>>Versions up to 2026.2.17(inclusive)
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Weaknesses
CWE IDTypeSource
CWE-400Primarysecurity-advisories@github.com
CWE ID: CWE-400
Type: Primary
Source: security-advisories@github.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/openclaw/openclaw/commit/63e39d7f57ac4ad4a5e38d17e7394ae7c4dd0b9csecurity-advisories@github.com
Patch
https://github.com/openclaw/openclaw/commit/8ae2d5110f6ceadef73822aa3db194fb60d2ba68security-advisories@github.com
Patch
https://github.com/openclaw/openclaw/commit/ebcf19746f5c500a41817e03abecadea8655654asecurity-advisories@github.com
Patch
https://github.com/openclaw/openclaw/releases/tag/v2026.2.19security-advisories@github.com
Release Notes
https://github.com/openclaw/openclaw/security/advisories/GHSA-cxpw-2g23-2vgwsecurity-advisories@github.com
Vendor Advisory
Hyperlink: https://github.com/openclaw/openclaw/commit/63e39d7f57ac4ad4a5e38d17e7394ae7c4dd0b9c
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/openclaw/openclaw/commit/8ae2d5110f6ceadef73822aa3db194fb60d2ba68
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/openclaw/openclaw/commit/ebcf19746f5c500a41817e03abecadea8655654a
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/openclaw/openclaw/releases/tag/v2026.2.19
Source: security-advisories@github.com
Resource:
Release Notes
Hyperlink: https://github.com/openclaw/openclaw/security/advisories/GHSA-cxpw-2g23-2vgw
Source: security-advisories@github.com
Resource:
Vendor Advisory
Change History
0Changes found
Details not found