CVE-2026-0760: Foundation Agents MetaGPT · Deserialization of Untrusted Data
Affects Foundation Agents MetaGPTSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 12:55 UTC
- EPSS
- 1.4% chance of exploitation in 30 days – higher than 72% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 23 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Foundation AgentsMetaGPT | Affected
| Fixed in– |
npmmetagptpkg:npm/metagptOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
- Immediately restrict network access to MetaGPT services, limiting exposure to trusted internal networks only.
- Implement strict input validation and sanitization on all data fed into the deserialize_message function to prevent malicious payloads.
- Monitor network traffic and logs for unusual deserialization activity or unexpected serialized data patterns.
- Employ application-layer firewalls or intrusion prevention systems capable of detecting and blocking deserialization attacks.
- Isolate MetaGPT instances in segmented network zones to contain potential breaches.
- Prepare for rapid patch deployment once an official fix is released by Foundation Agents.
- Conduct thorough security assessments and penetration testing focusing on deserialization vulnerabilities in AI frameworks.
- Educate development and security teams about secure deserialization practices and the risks of untrusted data processing.
- Use runtime application self-protection (RASP) tools to detect and prevent exploitation attempts in real time.
- Maintain up-to-date backups and incident response plans tailored to AI service compromises.
Description
CVE-2026-0760 is a critical remote code execution vulnerability in Foundation Agents MetaGPT version 0.8.1. It arises from improper validation during deserialization of untrusted data in the deserialize_message function, allowing attackers to execute arbitrary code without authentication or user interaction. The vulnerability impacts confidentiality, integrity, and availability, with a CVSS score of 9.8. Exploitation occurs remotely and requires no privileges, making it highly dangerous. Although no known exploits are currently in the wild, the flaw poses a significant risk to affected systems. European organizations using MetaGPT 0.8.