Vulnerability · Published Jan 23, 2026 · Assigned by zdi

CVE-2026-0760Foundation Agents MetaGPT deserialize_message Deserialization of Untrusted Data Remote Code Execution Vulnerability

Critical 9.8

In plain English

A critical-severity unsafe deserialization in MetaGPT from Foundation Agents. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities).

Severity (CVSS 3.0)9.8Critical

Exploit odds (30 days)1.4%top 26.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Foundation Agents MetaGPT deserialize_message Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foundation Agents MetaGPT. Authentication is not required to exploit this vulnerability. The specific flaw exists within the deserialize_message function. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-28121.

Affected products (as reported)

Vendor	Product	Versions
Foundation Agents	MetaGPT	0.8.1

Weakness: CWE-502 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

ZDI-26-026 x_research-advisory