Experts warn ChatGPT's Workspace Agent Builder can be hijacked to create malicious AI workers

https://www.techradar.com/author/sead-fadilpai· Jul 24, 2026 · 12:05 PM UTC ·9 min read · 0 reactions · 0 comments · 14 views

#security #ai #phishing #vulnerability #openai #Zenity Labs #OpenAI #ChatGPT #Michael Bargury #Sead Fadilpašić

TL;DR · WeSearch summary

Security researchers at Zenity Labs identified a vulnerability in OpenAI's ChatGPT Agent Builder, dubbed “AgentForger,” that allows malicious actors to create rogue AI agents via crafted links. The flaw could enable a single phishing click to deploy agents that exfiltrate data or persist within an organization’s infrastructure without user prompts. OpenAI responded by removing the risky URL parameter and has not detected any abuse of the issue.

Key facts

▪Zenity Labs discovered the AgentForger flaw in the ChatGPT Agent Builder, which permits arbitrary instructions through a permissive URL parameter.
▪A malicious link can trigger the creation of a rogue AI agent that operates without prompting the user, potentially exfiltrating sensitive data.
▪The vulnerability could allow persistent malicious agents to remain in a victim’s tech stack until detected.
▪OpenAI patched the issue by eliminating the vulnerable parameter, and no exploitation has been reported to date.

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Publication time	Fri, 24 Jul 2026 12:05:00 +0000
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Pro Security Experts warn ChatGPT's Workspace Agent Builder can be hijacked to create malicious AI workers News By Sead Fadilpašić Published 24 July 2026 A single phishing link could have spelled disaster When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. (Image credit: NurPhoto / Getty Images) Copy link Facebook X Whatsapp Reddit Pinterest Flipboard Threads Email Share this article 0 Join the conversation Follow us Add us as a preferred source on Google Newsletter Subscribe to our newsletter Zenity Labs found AgentForger, a flaw in OpenAI’s ChatGPT Agent BuilderMalicious links could instantly deploy rogue agents that exfiltrate sensitive data without user promptsOpenAI patched the issue by removing the risky URL parameter; no abuse…

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