PT-2026-26152 · Beijing Academy Of Artificial Intelligence · Omnigen2-Rl

Valentin Lobstein · Published 2026-03-18 · Updated 2026-03-18 · CVE-2026-25873

NVD

CVSS v3.1

9.8

Critical

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

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.

Exploit

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2026-25873

Affected Products

Omnigen2-Rl

References · 8

• 🔥 https://chocapikk.com/posts/2026/omnigen2-pickle-rce · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-25873 · Security Note
• https://github.com/VectorSpaceLab/OmniGen2/pull/139 · Patch
• https://arxiv.org/abs/2506.18871 · Note
• https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L208 · Note
• https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_server.py#L118 · Note
• https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L224 · Note
• https://vulncheck.com/advisories/omnigen2-rl-reward-server-unsafe-deserialization-rce · Note