CVE-2026-16126Public exploitNetwork attack vector

Unauthorized local-tool invocation via receiver-side flag omission

Published Jul 18, 2026 · Updated Jul 18, 2026

Incorrect authorization in RT-Claw's Swarm RPC Receiver allows remote attackers to invoke local-only tools over UDP. The handle_rpc_request function resolves an attacker-supplied tool name and calls claw_tool_invoke without enforcing the CLAW_TOOL_LOCAL_ONLY flag used by the sender path. Exploitation requires reachable UDP port 5300 with swarm and system tools enabled; verified Linux builds permit persistent memory reads, writes, and deletion.

CVSS severity6.9
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in RT-Claw's Swarm RPC Receiver allows remote attackers to invoke local-only tools over UDP. The handle_rpc_request function resolves an attacker-supplied tool name and calls claw_tool_invoke without enforcing the CLAW_TOOL_LOCAL_ONLY flag used by the sender path. Exploitation requires reachable UDP port 5300 with swarm and system tools enabled; verified Linux builds permit persistent memory reads, writes, and deletion.

The record

CVE
CVE-2026-16126
Published
Jul 18, 2026
Updated
Jul 18, 2026
Vendor
Zevorn
Product
RT-Claw
Classifications
CWE-863, CWE-285, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.1
  2. Affected versionversion=0.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Zevorn · RT-Clawversion=0.1; version=0.2.0

Published CVSS scores

7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P
7.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization
CWE-285Improper Authorization
T1210Exploitation of Remote Services

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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