ZDI-CAN-29103: ZDI-26-808: Meta FAIRChem run_validation Deserialization of Untrusted Data Remote Code Execution Vulnerability
Published Oct 26, 2026
·Updated
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Meta FAIRChem. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8.
Affected Software
1 affected component
Meta FAIRChem
Event History
Oct 26, 2026
Advisory Published
via ZDI·05:00 AM
Data Sourced
via ZDI·05:00 AM
Description
Frequently Asked Questions
1
What must an attacker do to exploit this issue?
The attacker must cause the target to visit a malicious page or open a malicious file. Successful exploitation can result in arbitrary code execution on the affected Meta FAIRChem installation.
2
Is user interaction required?
Yes. The target must visit a malicious page or open a malicious file for exploitation to occur.