AgentAPI is an HTTP API for Claude Code, Goose, Aider, Gemini, Amp, and Codex. Versions 0.3.3 and below are susceptible to a client-side DNS rebinding attack when hosted over plain HTTP on localhost. An attacker can gain access to the /messages endpoint served by the Agent API. This allows for the unauthorized exfiltration of sensitive user data, specifically local message history, which can include secret keys, file system contents, and intellectual property the user was working on locally. This issue is fixed in version 0.4.0.
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Description | AgentAPI is an HTTP API for Claude Code, Goose, Aider, Gemini, Amp, and Codex. Versions 0.3.3 and below are susceptible to a client-side DNS rebinding attack when hosted over plain HTTP on localhost. An attacker can gain access to the /messages endpoint served by the Agent API. This allows for the unauthorized exfiltration of sensitive user data, specifically local message history, which can include secret keys, file system contents, and intellectual property the user was working on locally. This issue is fixed in version 0.4.0. | |
Title | AgentAPI exposed user chat history via a DNS rebinding attack | |
Weaknesses | CWE-350 | |
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-09-30T14:14:53.214Z
Reserved: 2025-09-23T14:33:49.506Z
Link: CVE-2025-59956

Updated: 2025-09-30T14:14:47.754Z

Status : Awaiting Analysis
Published: 2025-09-30T11:37:41.743
Modified: 2025-10-02T19:12:42.843
Link: CVE-2025-59956

No data.

Updated: 2025-09-30T08:47:29Z