CVE-2026-27576

MEDIUM EPSS 6.0%
Published Feb 21, 20264mo ago · Modified Jun 17, 20261w ago
4.8 CVSS 4.0
Medium
Find Similar
Published Feb 21, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
4.8
Exploitability
—
Impact
—
Vector string
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
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
6.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-400 Uncontrolled Resource Consumption Resource Mgmt

Affected Products 1

VendorProductVersionRange
openclawopenclaw* ≤2026.2.17

References 5

  • github.com https://github.com/openclaw/openclaw/commit/63e39d7f57ac4ad4a5e38d17e7394ae7c4dd0b9c
    Patch
  • github.com https://github.com/openclaw/openclaw/commit/8ae2d5110f6ceadef73822aa3db194fb60d2ba68
    Patch
  • github.com https://github.com/openclaw/openclaw/commit/ebcf19746f5c500a41817e03abecadea8655654a
    Patch
  • github.com https://github.com/openclaw/openclaw/releases/tag/v2026.2.19
    Release Notes
  • github.com https://github.com/openclaw/openclaw/security/advisories/GHSA-cxpw-2g23-2vgw
    Vendor Advisory

Remediation

  • github.com https://github.com/openclaw/openclaw/commit/63e39d7f57ac4ad4a5e38d17e7394ae7c4dd0b9c
    Patch
  • github.com https://github.com/openclaw/openclaw/commit/8ae2d5110f6ceadef73822aa3db194fb60d2ba68
    Patch
  • github.com https://github.com/openclaw/openclaw/commit/ebcf19746f5c500a41817e03abecadea8655654a
    Patch