VulnerabilityAnalyzed
CVE-2026-27576
OpenClaw is a personal AI assistant.
MEDIUM 4.8EPSS 0.17%
Does this matter?
Lower severity and a low EPSS score (0.17%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 4.8 MEDIUMCVSS: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/M
- EPSS
- 0.17% probability · 6th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- openclaw/openclaw
- Source
- security-advisories@github.com
References
- https://github.com/openclaw/openclaw/commit/63e39d7f57ac4ad4a5e38d17e7394ae7c4dd0b9cPatch
- https://github.com/openclaw/openclaw/commit/8ae2d5110f6ceadef73822aa3db194fb60d2ba68Patch
- https://github.com/openclaw/openclaw/commit/ebcf19746f5c500a41817e03abecadea8655654aPatch
- https://github.com/openclaw/openclaw/releases/tag/v2026.2.19Release Notes
- https://github.com/openclaw/openclaw/security/advisories/GHSA-cxpw-2g23-2vgwVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.