OmniGen2-RL contains an unauthenticated remote code execution vulnerability in the reward server component that allows remote attackers to execute arbitrary commands by sending malicious HTTP POST requests. Attackers can exploit insecure pickle deserialization of request bodies to achieve code execution on the host system running the exposed service.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 7
https://arxiv.org/abs/2506.18871
disclosure@vulncheck.com
https://chocapikk.com/posts/2026/omnigen2-pickle-rce/
disclosure@vulncheck.com
https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd622…
disclosure@vulncheck.com
https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd622…
disclosure@vulncheck.com
https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd622…
disclosure@vulncheck.com
https://github.com/VectorSpaceLab/OmniGen2/pull/139
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/omnigen2-rl-reward-server-unsafe-deseriali…
disclosure@vulncheck.com