CVE-2026-25873

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://arxiv.org/abs/2506.18871
https://chocapikk.com/posts/2026/omnigen2-pickle-rce/
https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L208
https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L224
https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_server.py#L118
https://github.com/VectorSpaceLab/OmniGen2/pull/139
https://www.vulncheck.com/advisories/omnigen2-rl-reward-server-unsafe-deserialization-rce

Configurations

No configuration.

History

18 Mar 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-18 21:16

Updated : 2026-03-19 13:25

NVD link : CVE-2026-25873

Mitre link : CVE-2026-25873

CVE.ORG link : CVE-2026-25873

JSON object : View

Products Affected

No product.

CWE

CWE-502

Deserialization of Untrusted Data

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