Privilege Escalation Vulnerability in OpenClaw Chat Feature
CVE-2026-41344

5.3MEDIUM

Key Information:

Vendor

Openclaw

Status
Openclaw
Vendor
CVE Published:
23 April 2026

What is CVE-2026-41344?

A vulnerability in OpenClaw versions before 2026.3.28 allows unauthorized users to exploit the chat.send endpoint. By manipulating the /verbose parameter, attackers can bypass access controls that are typically intended to protect sensitive information designated for administrators. This flaw enables write-scoped gateway callers to persist admin-only session overrides, potentially exposing critical reasoning and tool output that should remain confidential.

Affected Version(s)

OpenClaw 0 < 2026.3.28

OpenClaw 2026.3.28

References

https://github.com/openclaw/openclaw/security/advisories/...
vendor-advisory
https://www.vulncheck.com/advisories/openclaw-privilege-e...
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Peng Zhou (@zpbrent)
.