Internal HTTP data exposure via unchecked RPC URLs
Published Jul 18, 2026 · Updated Jul 18, 2026
SSRF in RT-Claw 0.1 and 0.2.0 allows remote attackers to read internal HTTP resources through unauthenticated swarm RPC. receiver_thread dispatches attacker-controlled JSON to http_request, which passes its URL directly to libcurl without destination validation. Any peer able to reach UDP port 5300 can retrieve loopback or private-network response bodies through the RPC reply when the swarm and network-tool features are enabled.
Summary
What happened
SSRF in RT-Claw 0.1 and 0.2.0 allows remote attackers to read internal HTTP resources through unauthenticated swarm RPC. receiver_thread dispatches attacker-controlled JSON to http_request, which passes its URL directly to libcurl without destination validation. Any peer able to reach UDP port 5300 can retrieve loopback or private-network response bodies through the RPC reply when the swarm and network-tool features are enabled.
The record
- CVE
- CVE-2026-16128
- Published
- Jul 18, 2026
- Updated
- Jul 18, 2026
- Vendor
- Zevorn
- Product
- RT-Claw
- Classifications
- CWE-918, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 18, 2026CVE publishedPublication date reported by the CVE source.
- 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.
- Affected versionversion=0.1
- Affected versionversion=0.2.0
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- RT-Claw swarm RPC SSRF verification scriptfunctional · demonstrated
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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