CVE-2026-27576
MEDIUMOpenClaw < 2026.2.17 - Uncontrolled Resource Consumption via Large Prompt Payloads
Title source: llmDescription
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.
References (5)
Core 5
Core References
Vendor Advisory x_refsource_confirm
https://github.com/openclaw/openclaw/security/advisories/GHSA-cxpw-2g23-2vgw
Patch x_refsource_misc
https://github.com/openclaw/openclaw/commit/63e39d7f57ac4ad4a5e38d17e7394ae7c4dd0b9c
Patch x_refsource_misc
https://github.com/openclaw/openclaw/commit/8ae2d5110f6ceadef73822aa3db194fb60d2ba68
Patch x_refsource_misc
https://github.com/openclaw/openclaw/commit/ebcf19746f5c500a41817e03abecadea8655654a
Release Notes x_refsource_misc
https://github.com/openclaw/openclaw/releases/tag/v2026.2.19
Scores
CVSS v3
4.0
EPSS
0.0016
EPSS Percentile
6.0%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-400
Status
published
Products (2)
npm/openclaw
0 - 2026.2.19npm
openclaw/openclaw
< 2026.2.17
Published
Feb 21, 2026
Tracked Since
Feb 21, 2026