Vulnerability-Lookup

FKIE_CVE-2026-25873

Vulnerability from fkie_nvd - Published: 2026-03-18 21:16 - Updated: 2026-03-19 13:25

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

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.

References

	URL	Tags
	disclosure@vulncheck.com	https://arxiv.org/abs/2506.18871
	disclosure@vulncheck.com	https://chocapikk.com/posts/2026/omnigen2-pickle-rce/
	disclosure@vulncheck.com	https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L208
	disclosure@vulncheck.com	https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L224
	disclosure@vulncheck.com	https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_server.py#L118
	disclosure@vulncheck.com	https://github.com/VectorSpaceLab/OmniGen2/pull/139
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/omnigen2-rl-reward-server-unsafe-deserialization-rce

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "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 ejecuci\u00f3n remota de c\u00f3digo 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 deserializaci\u00f3n pickle insegura de los cuerpos de las solicitudes para lograr la ejecuci\u00f3n de c\u00f3digo en el sistema anfitri\u00f3n que ejecuta el servicio expuesto."
    }
  ],
  "id": "CVE-2026-25873",
  "lastModified": "2026-03-19T13:25:00.570",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "disclosure@vulncheck.com",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "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",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-18T21:16:25.220",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://arxiv.org/abs/2506.18871"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://chocapikk.com/posts/2026/omnigen2-pickle-rce/"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L208"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_proxy.py#L224"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/VectorSpaceLab/OmniGen2/blob/3a13017e532f9f309a38bca571fd62200a6415c5/OmniGen2-RL/reward_server/reward_server.py#L118"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/VectorSpaceLab/OmniGen2/pull/139"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/omnigen2-rl-reward-server-unsafe-deserialization-rce"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Primary"
    }
  ]
}

CVE-2026-25873 (GCVE-0-2026-25873)

Vulnerability from cvelistv5 – Published: 2026-03-18 20:47 – Updated: 2026-03-19 15:43

Title

OmniGen2-RL Reward Server Unsafe Deserialization RCE

Summary

Severity

9.3 (Critical)


                        
                          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

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

VulnCheck

References

7 references

URL	Tags
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
https://github.com/VectorSpaceLab/OmniGen2/blob/3…	related
https://github.com/VectorSpaceLab/OmniGen2/blob/3…	related
https://github.com/VectorSpaceLab/OmniGen2/blob/3…	related
https://www.vulncheck.com/advisories/omnigen2-rl-…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Beijing Academy of Artificial Intelligence (BAAI)	OmniGen2-RL	Affected: 0

Credits

Valentin Lobstein (Chocapikk)

Show details on NVD website

JSON

To clipboard

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      {
        "metrics": [
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            "other": {
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                "id": "CVE-2026-25873",
                "options": [
                  {
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-19T15:43:03.111886Z",
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    "cna": {
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          "repo": "https://github.com/VectorSpaceLab/OmniGen2",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-25873

CVE-2026-25873 (GCVE-0-2026-25873)

Tags

Sightings

Nomenclature