CVE-2026-114612 (GCVE-0-2026-114612)

Vulnerability from cvelistv5 – Published: 2026-10-22 18:01 – Updated: 2026-10-22 18:01
VLAI
Title
LiteLLM: Privilege Escalation to Proxy Admin via Cross-Domain Reuse of the Salt Key
Summary
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From 1.87.0 until 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2, the proxy reuses one cryptographic context for at-rest secrets and session tokens, allowing an authenticated internal user to have crafted metadata containing a forged administrator credential encrypted and returned by the API-key flow. Replaying that ciphertext as a bearer token causes the proxy to trust the forged proxy administrator identity, permitting administrative access and arbitrary commands through the MCP stdio endpoint. Versions 1.87.0 through 1.90.x require EXPERIMENTAL_UI_LOGIN to be enabled, while versions after 1.91.0 are exploitable in the default configuration. This issue was fixed in LiteLLM 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2.
Severity
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-269 - Improper Privilege Management
  • CWE-345 - Insufficient Verification of Data Authenticity
  • CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7714 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
BerriAI litellm Affected: >= 1.87.0, < 1.100.4
Affected: >= 1.101.0, < 1.101.3
Affected: >= 1.102.0, < 1.102.2
Affected: >= 1.103.0, < 1.103.1
Affected: >= 1.104.0-rc.1, < 1.104.0-rc.2
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "litellm",
          "vendor": "BerriAI",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.87.0, \u003c 1.100.4"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.101.0, \u003c 1.101.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.102.0, \u003c 1.102.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.103.0, \u003c 1.103.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.104.0-rc.1, \u003c 1.104.0-rc.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From 1.87.0 until 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2, the proxy reuses one cryptographic context for at-rest secrets and session tokens, allowing an authenticated internal user to have crafted metadata containing a forged administrator credential encrypted and returned by the API-key flow. Replaying that ciphertext as a bearer token causes the proxy to trust the forged proxy administrator identity, permitting administrative access and arbitrary commands through the MCP stdio endpoint. Versions 1.87.0 through 1.90.x require EXPERIMENTAL_UI_LOGIN to be enabled, while versions after 1.91.0 are exploitable in the default configuration. This issue was fixed in LiteLLM 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-269",
              "description": "CWE-269: Improper Privilege Management",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-345",
              "description": "CWE-345: Insufficient Verification of Data Authenticity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-441",
              "description": "CWE-441: Unintended Proxy or Intermediary (\u0027Confused Deputy\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-22T18:01:52.768Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/BerriAI/litellm/security/advisories/GHSA-7hp6-4w63-5g45",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/BerriAI/litellm/security/advisories/GHSA-7hp6-4w63-5g45"
        },
        {
          "name": "https://github.com/BerriAI/litellm/commit/1d5fdc87fed66b49e1df8cf7d708ad93249eb7d0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/BerriAI/litellm/commit/1d5fdc87fed66b49e1df8cf7d708ad93249eb7d0"
        },
        {
          "name": "https://github.com/BerriAI/litellm/commit/9161d7f9d6073603ba61ee4aa5e2c0ef5b37a81b",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/BerriAI/litellm/commit/9161d7f9d6073603ba61ee4aa5e2c0ef5b37a81b"
        },
        {
          "name": "https://github.com/BerriAI/litellm/commit/9fa1a641119dd0d4fe43e93622eae5f482ceb63f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/BerriAI/litellm/commit/9fa1a641119dd0d4fe43e93622eae5f482ceb63f"
        },
        {
          "name": "https://github.com/BerriAI/litellm/commit/a80eacacee118fbed54e3d98f239d17a63fac818",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/BerriAI/litellm/commit/a80eacacee118fbed54e3d98f239d17a63fac818"
        },
        {
          "name": "https://github.com/BerriAI/litellm/commit/f7cd90f09e9716652b38daec9f0640cdf49d582b",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/BerriAI/litellm/commit/f7cd90f09e9716652b38daec9f0640cdf49d582b"
        },
        {
          "name": "https://github.com/BerriAI/litellm/releases/tag/v1.100.4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/BerriAI/litellm/releases/tag/v1.100.4"
        },
        {
          "name": "https://github.com/BerriAI/litellm/releases/tag/v1.101.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/BerriAI/litellm/releases/tag/v1.101.3"
        },
        {
          "name": "https://github.com/BerriAI/litellm/releases/tag/v1.102.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/BerriAI/litellm/releases/tag/v1.102.2"
        },
        {
          "name": "https://github.com/BerriAI/litellm/releases/tag/v1.103.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/BerriAI/litellm/releases/tag/v1.103.1"
        },
        {
          "name": "https://github.com/BerriAI/litellm/releases/tag/v1.104.0-rc.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/BerriAI/litellm/releases/tag/v1.104.0-rc.2"
        }
      ],
      "source": {
        "advisory": "GHSA-7hp6-4w63-5g45",
        "discovery": "UNKNOWN"
      },
      "title": "LiteLLM: Privilege Escalation to Proxy Admin via Cross-Domain Reuse of the Salt Key"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-114612",
    "datePublished": "2026-10-22T18:01:52.768Z",
    "dateReserved": "2026-10-21T20:34:25.599Z",
    "dateUpdated": "2026-10-22T18:01:52.768Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-114612",
      "date": "2026-10-23",
      "epss": "0.00235",
      "percentile": "0.13629"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "litellm",
                "vendor": "BerriAI",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003e= 1.87.0, \u003c 1.100.4"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 1.101.0, \u003c 1.101.3"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 1.102.0, \u003c 1.102.2"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 1.103.0, \u003c 1.103.1"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 1.104.0-rc.1, \u003c 1.104.0-rc.2"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From 1.87.0 until 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2, the proxy reuses one cryptographic context for at-rest secrets and session tokens, allowing an authenticated internal user to have crafted metadata containing a forged administrator credential encrypted and returned by the API-key flow. Replaying that ciphertext as a bearer token causes the proxy to trust the forged proxy administrator identity, permitting administrative access and arbitrary commands through the MCP stdio endpoint. Versions 1.87.0 through 1.90.x require EXPERIMENTAL_UI_LOGIN to be enabled, while versions after 1.91.0 are exploitable in the default configuration. This issue was fixed in LiteLLM 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2."
          }
        ],
        "id": "CVE-2026-114612",
        "lastModified": "2026-10-22T19:17:37.540",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
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                "baseScore": 9.9,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.1,
              "impactScore": 6.0,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
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        },
        "published": "2026-10-22T19:17:37.540",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/BerriAI/litellm/commit/1d5fdc87fed66b49e1df8cf7d708ad93249eb7d0"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/BerriAI/litellm/commit/9161d7f9d6073603ba61ee4aa5e2c0ef5b37a81b"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/BerriAI/litellm/commit/9fa1a641119dd0d4fe43e93622eae5f482ceb63f"
          },
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            "url": "https://github.com/BerriAI/litellm/commit/a80eacacee118fbed54e3d98f239d17a63fac818"
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            "source": "security-advisories@github.com",
            "url": "https://github.com/BerriAI/litellm/commit/f7cd90f09e9716652b38daec9f0640cdf49d582b"
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            "source": "security-advisories@github.com",
            "url": "https://github.com/BerriAI/litellm/releases/tag/v1.101.3"
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            "source": "security-advisories@github.com",
            "url": "https://github.com/BerriAI/litellm/releases/tag/v1.102.2"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/BerriAI/litellm/releases/tag/v1.103.1"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/BerriAI/litellm/releases/tag/v1.104.0-rc.2"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/BerriAI/litellm/security/advisories/GHSA-7hp6-4w63-5g45"
          }
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        "vulnStatus": "Received",
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          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-269"
              },
              {
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                "value": "CWE-345"
              },
              {
                "lang": "en",
                "value": "CWE-441"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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