PYSEC-2026-2637 FoundationAgents MetaGPT: Deserialization through flawed argument mapping via Message.check_instruct_content()

A weakness has been identified in FoundationAgents MetaGPT up to 0.8.2. This affects the function Message.checkinstructcontent of the file metagpt/schema.py. Executing a manipulation of the argument mapping can lead to deserialization. The attack is restricted to local execution. The exploit has...

CVE-2026-10566 FoundationAgents MetaGPT schema.py Message.check_instruct_content deserialization

A weakness has been identified in FoundationAgents MetaGPT up to 0.8.2. This affects the function Message.checkinstructcontent of the file metagpt/schema.py. Executing a manipulation of the argument mapping can lead to deserialization. The attack is restricted to local execution. The exploit has...

PT-2026-45684

Name of the Vulnerable Software and Affected Versions FoundationAgents MetaGPT versions prior to 0.8.3 Description A weakness exists in the Message.check instruct content function within the metagpt/schema.py file. Manipulation of the mapping argument can lead to deserialization, which is the...