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Python CVE-2026-0761

CRITICAL
Code Injection (CWE-94)
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 actionoutput_str_to_mapping Code Injection 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 actionoutput_str_to_mapping function. The issue results from the lack of proper validation of a user-supplied string before using it to execute Python code. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-28124.

AnalysisAI

MetaGPT has a code injection vulnerability in actionoutput_str_to_mapping (EPSS 2.6%) allowing remote attackers to execute arbitrary code through crafted AI agent output processing.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Send crafted string to actionoutput_str_to_mapping function
Exploit
Bypass input validation
Execution
Execute arbitrary Python code
Impact
Achieve remote code execution as service account

Vulnerability AssessmentAI

Exploitation No special conditions — remote unauthenticated exploitation against Foundation Agents MetaGPT with exposed actionoutput_str_to_mapping function accessible over network. Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 9.8, EPSS 2.6%. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker manipulates LLM outputs (through prompt injection or compromised model) to include code injection payloads in the structured output that MetaGPT's str_to_mapping function evaluates, achieving RCE.
Remediation Update MetaGPT. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all MetaGPT deployments in your environment and assess internet exposure; isolate affected systems from production networks if possible. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-0761 vulnerability details – vuln.today

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