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CVE-2026-12798

Estado: AnalizadaBaja (2.1)—

A weakness has been identified in BerriAI litellm up to 1.82.2. Affected by this vulnerability is the function load_openapi_spec_async of the file litellm/proxy/_experimental/mcp_server/openapi_to_mcp_generator.py of the component MCP OpenAPI Spec Loader. This manipulation of the argument spec_path causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.

CVSS

Probabilidad de explotación (EPSS)

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).

Tecnologías afectadas (1)

Litellm — Litellm

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-12798",
  "cveTags": [],
  "metrics": {
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          "id": "CVE-2026-12798",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
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              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-22T17:14:11.598867Z"
        }
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          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
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          "accessComplexity": "LOW",
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        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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        "obtainUserPrivilege": false,
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      }
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    "cvssMetricV31": [
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          "scope": "UNCHANGED",
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    ],
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          "Safety": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
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          "valueDensity": "NOT_DEFINED",
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          "exploitMaturity": "PROOF_OF_CONCEPT",
          "providerUrgency": "NOT_DEFINED",
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          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "vulnAvailabilityImpact": "LOW",
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          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
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  },
  "affected": [
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      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:litellm:litellm:*:*:*:*:*:*:*:*"
          ],
          "vendor": "BerriAI",
          "modules": [
            "MCP OpenAPI Spec Loader"
          ],
          "product": "litellm",
          "versions": [
            {
              "status": "affected",
              "version": "1.82.0"
            },
            {
              "status": "affected",
              "version": "1.82.1"
            },
            {
              "status": "affected",
              "version": "1.82.2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-06-21T10:16:17.023",
  "references": [
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      "url": "https://gist.github.com/YLChen-007/c1104c529975699ba347feedfbe02c5a",
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        "Third Party Advisory"
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      "tags": [
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      "source": "cna@vuldb.com"
    },
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      "source": "cna@vuldb.com"
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      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/vuln/372560/cti",
      "tags": [
        "Permissions Required",
        "VDB Entry"
      ],
      "source": "cna@vuldb.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cna@vuldb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A weakness has been identified in BerriAI litellm up to 1.82.2. Affected by this vulnerability is the function load_openapi_spec_async of the file litellm/proxy/_experimental/mcp_server/openapi_to_mcp_generator.py of the component MCP OpenAPI Spec Loader. This manipulation of the argument spec_path causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure."
    }
  ],
  "lastModified": "2026-06-24T19:37:47.417",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:litellm:litellm:*:*:*:*:*:*:*:*",
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              "matchCriteriaId": "2D697723-9909-4732-A558-9A8F30BBB812",
              "versionEndIncluding": "1.82.2"
            }
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      ]
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  ],
  "sourceIdentifier": "cna@vuldb.com"
}