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CVE-2026-25873

CRITICAL

9.8

Description

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/18/2026

Last Modified3/19/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-502

References

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/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L208(disclosure@vulncheck.com)

https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L224(disclosure@vulncheck.com)

https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_server.py#L118(disclosure@vulncheck.com)

https://github.com/VectorSpaceLab/OmniGen2/pull/139(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/omnigen2-rl-reward-server-unsafe-deserialization-rce(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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