CVE-2026-41344

MEDIUM 5.4

OpenClaw < 2026.3.28 - Privilege Escalation via chat.send /verbose Parameter

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

OpenClaw before 2026.3.28 contains a privilege escalation vulnerability in the chat.send endpoint that allows write-scoped gateway callers to persist admin-only verboseLevel session overrides. Attackers can exploit the /verbose parameter to bypass access controls and expose sensitive reasoning or tool output intended to be restricted to administrators.

CWE	CWE-863
Vendor	openclaw
Product	openclaw
Published	Apr 23, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

OpenClaw / OpenClaw

0 < 2026.3.28

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/openclaw/openclaw/security/advisories/GHSA-5h2w-qmfp-ggp6 vulncheck.com: https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-chat-send-verbose-parameter

Credits

🔍 Peng Zhou (@zpbrent)