CVE-2026-0761Public exploitNetwork attack vector

Unauthenticated code execution via Python eval

Published Jan 23, 2026 · Updated Jan 23, 2026

Code injection in Foundation Agents MetaGPT 0.8.1 allows remote attackers to execute arbitrary code through a crafted mapping string. The actionoutput_str_to_mapping function passes attacker-controlled mapping values to Python eval(), which interprets them as executable expressions instead of limiting them to supported type encodings. Exploitation requires no authentication and runs the supplied expression with the privileges of the MetaGPT service account.

CVSS severity9.8
Critical
EPSS probability2.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Foundation Agents MetaGPT 0.8.1 allows remote attackers to execute arbitrary code through a crafted mapping string. The actionoutput_str_to_mapping function passes attacker-controlled mapping values to Python eval(), which interprets them as executable expressions instead of limiting them to supported type encodings. Exploitation requires no authentication and runs the supplied expression with the privileges of the MetaGPT service account.

The record

CVE
CVE-2026-0761
Published
Jan 23, 2026
Updated
Jan 23, 2026
Vendor
Foundation Agents
Product
MetaGPT
Classifications
CWE-94, T1059.006
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.8.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Foundation Agents · MetaGPTversion=0.8.1

Published CVSS scores

9.8Zero Day InitiativeCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.006Command and Scripting Interpreter: Python

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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