🔐 CVE Alert

CVE-2026-25873

CRITICAL 9.8

OmniGen2-RL Reward Server Unsafe Deserialization RCE

CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-502
Vendor beijing academy of artificial intelligence (baai)
Product omnigen2-rl
Published Mar 18, 2026
Last Updated Mar 19, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

Beijing Academy of Artificial Intelligence (BAAI) / OmniGen2-RL
0

References

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

Credits

Valentin Lobstein (Chocapikk)