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ChatGPT Workspace Agents CSRF AgentForger security flaw

Vulnerability
First reported
Last updated
Happening score
H score 40
1 unique sources, 1 articles

Summary

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OpenAI's ChatGPT Workspace Agents faced a cross-site request forgery (CSRF) flaw that let a single phishing link create and deploy an attacker-controlled agent inside a victim organization's trust boundary. The bug, dubbed AgentForger by Zenity Labs, could run in a logged-in user's session and turn approved connectors into a persistence mechanism. OpenAI addressed the issue on June 8, 2026, closing a path to unauthorized agent creation, internal reconnaissance, and data theft.

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Timeline

  1. 24.07.2026 14:53 1 articles · 7h ago

    OpenAI addresses AgentForger in ChatGPT Workspace Agents

    Mitigation Patch Update

    OpenAI addressed the AgentForger issue in ChatGPT Workspace Agents / Agent Builder on June 8, 2026, following responsible disclosure of a flaw that could let a phishing link create and run an attacker-controlled autonomous agent inside a victim's authenticated ChatGPT session.

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  2. 24.07.2026 14:53 2 articles · 7h ago

    Zenity Labs discloses AgentForger in ChatGPT Workspace Agents

    Initial Disclosure

    Zenity Labs disclosed AgentForger, a critical CSRF flaw in OpenAI's ChatGPT Workspace Agents / Agent Builder, where a single phishing link could open a victim's authenticated ChatGPT session, automatically submit a crafted `initial_assistant_prompt`, and create an attacker-controlled agent inside the victim's organization.

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