CVE-2026-25873
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.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/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
- Puntuación base: 9.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.53%
- Percentil entre todas las CVEs puntuadas: 74
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto principal
T1059Command and Scripting Interpreterexecution90 %
Vulnerabilidad remota sin autenticación en servicio expuesto (AV:N/PR:N). Deserialization insegura de pickle permite RCE en el servidor; el texto cita 'arbitrary commands' en el host.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-502
Referencias
- https://arxiv.org/abs/2506.18871
- https://chocapikk.com/posts/2026/omnigen2-pickle-rce/
- https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L208
- https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L224
- https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_server.py#L118
- https://github.com/VectorSpaceLab/OmniGen2/pull/139
- https://www.vulncheck.com/advisories/omnigen2-rl-reward-server-unsafe-deserialization-rce
JSON original (NVD)
Mostrar
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"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
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"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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"affected": [
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"affectedData": [
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"vendor": "Beijing Academy of Artificial Intelligence (BAAI)",
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"published": "2026-03-18T21:16:25.220",
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"description": [
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"descriptions": [
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"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "OmniGen2-RL contiene una vulnerabilidad de ejecución remota de código no autenticada en el componente del servidor de recompensas que permite a atacantes remotos ejecutar comandos arbitrarios enviando solicitudes POST HTTP maliciosas. Los atacantes pueden explotar la deserialización pickle insegura de los cuerpos de las solicitudes para lograr la ejecución de código en el sistema anfitrión que ejecuta el servicio expuesto."
}
],
"lastModified": "2026-07-14T16:16:56.907",
"sourceIdentifier": "disclosure@vulncheck.com"
}