Remote Code Execution Vulnerability in OmniGen2-RL Reward Server by VectorSpaceLab
CVE-2026-25873

9.3CRITICAL

Key Information:

Vendor

Beijing Academy Of Artificial Intelligence (baai)

Status
Omnigen2-rl
Vendor
CVE Published:
18 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-25873?

The OmniGen2-RL reward server component is vulnerable to an unauthenticated remote code execution flaw. By exploiting insecure pickle deserialization, an attacker can send specially crafted HTTP POST requests to execute arbitrary commands on the server. This vulnerability allows for potential unauthorized access and control of the system, posing a significant risk to those utilizing the affected versions of OmniGen2-RL.

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Affected Version(s)

OmniGen2-RL 0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-25873 - Proof of Concept

References

https://github.com/VectorSpaceLab/OmniGen2/pull/139
patch
https://chocapikk.com/posts/2026/omnigen2-pickle-rce/
technical-descriptionexploit
https://arxiv.org/abs/2506.18871
product

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Valentin Lobstein (Chocapikk)
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