High severity · published Apr 23, 2026
CVE-2026-41344
OpenClaw < 2026.3.28 - Privilege Escalation via chat.send /verbose Parameter
8.8
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenClaw · OpenClaw
before 2026.3.28 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41344
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41344
Vendor Advisory
https://github.com/openclaw/openclaw/security/advisories/GHSA-5h2w-qmfp-ggp6
Third Party Advisory
https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-chat-send-verbose-parameter
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