CVE-2026-25873
OmniGen2-RL Reward Server Unsafe Deserialization RCE
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.
INFO
Published Date :
March 18, 2026, 9:16 p.m.
Last Modified :
July 14, 2026, 4:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | CRITICAL | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | CRITICAL | [email protected] |
Solution
- Apply vendor patches or updates.
- Disable or restrict pickle deserialization.
- Validate all incoming HTTP POST requests.
- Monitor server logs for suspicious activity.
Public PoC/Exploit Available at Github
CVE-2026-25873 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-25873.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-25873 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-25873
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-25873 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-25873 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Jul. 14, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://github.com/VectorSpaceLab/OmniGen2', 'vendor': 'Beijing Academy of Artificial Intelligence (BAAI)', 'product': 'OmniGen2-RL', 'versions': [{'status': 'affected', 'version': '0'}], 'defaultStatus': 'unknown'}] [{'repo': 'https://github.com/VectorSpaceLab/OmniGen2', 'vendor': 'Beijing Academy of Artificial Intelligence (BAAI)', 'product': 'OmniGen2-RL', 'versions': [{'status': 'affected', 'version': '0'}], 'packageURL': 'pkg:github/VectorSpaceLab/OmniGen2', 'defaultStatus': 'unknown'}] -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/VectorSpaceLab/OmniGen2', 'vendor': 'Beijing Academy of Artificial Intelligence (BAAI)', 'product': 'OmniGen2-RL', 'versions': [{'status': 'affected', 'version': '0'}], 'defaultStatus': 'unknown'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-25873', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-03-19T15:43:03.111886Z'} -
New CVE Received by [email protected]
Mar. 18, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-502 Added Reference https://arxiv.org/abs/2506.18871 Added Reference https://chocapikk.com/posts/2026/omnigen2-pickle-rce/ Added Reference https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L208 Added Reference https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L224 Added Reference https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_server.py#L118 Added Reference https://github.com/VectorSpaceLab/OmniGen2/pull/139 Added Reference https://www.vulncheck.com/advisories/omnigen2-rl-reward-server-unsafe-deserialization-rce