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AI / ML CVE-2026-0760

CRITICAL
Deserialization of Untrusted Data (CWE-502)
2026-01-23 zdi-disclosures@trendmicro.com
9.8
CVSS 3.0 · NVD
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Severity by source

NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 23, 2026 - 04:16 nvd
CRITICAL 9.8

DescriptionCVE.org

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.

AnalysisAI

MetaGPT by Foundation Agents has an insecure deserialization in deserialize_message (EPSS 1.7%) enabling remote code execution through crafted serialized data in AI agent communications.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Send malicious serialized message
Exploit
deserialize_message parses untrusted data
Execution
Trigger deserialization gadget chain
Impact
Execute arbitrary code as service account

Vulnerability AssessmentAI

Exploitation No special conditions — remote unauthenticated exploitation against Foundation Agents MetaGPT instances with deserialize_message function accepting network-supplied serialized objects. Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 9.8, EPSS 1.7%. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker injects a crafted serialized payload into MetaGPT's message queue. When another agent deserializes the message, the payload executes arbitrary code, potentially compromising all agents in the system.
Remediation Update MetaGPT. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify and inventory all MetaGPT deployments in your environment; isolate affected systems from production networks if operationally feasible; enable enhanced logging and monitoring for suspicious deserialization activity. …

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CVE-2026-0760 vulnerability details – vuln.today

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