CVE-2026-25873 OmniGen2-RL Reward Server Unsafe Deserialization RCE
Remote attackers can execute arbitrary code on OmniGen2-RL reward servers via unsafe pickle deserialization in HTTP POST requests.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-25873?
CVE-2026-25873 is a critical unsafe deserialization vulnerability in Beijing Academy of Artificial Intelligence (BAAI) OmniGen2-RL, published on 18 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-502
Which versions are affected by CVE-2026-25873?
How do I fix CVE-2026-25873?
No fix has been published for CVE-2026-25873 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-25873 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-25873 exists.
Sources
Also known as GHSA-38h5-7g7p-55vv.