FKIE_CVE-2026-11922

Vulnerability from fkie_nvd - Published: 2026-07-24 04:16 - Updated: 2026-07-24 13:17
Severity
6.5 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
A vulnerability in zenml-io/zenml versions 0.57.0 through 0.94.2 allows an attacker to bypass rate-limiting on the `POST /api/v1/login` and self password-change endpoints by rotating the `X-Forwarded-For` header. The rate limiter keys requests by `request.client.host`, which is derived from the `X-Forwarded-For` header when Uvicorn is launched with `--proxy-headers --forwarded-allow-ips *`. This configuration allows clients to control the value of `request.client.host`, effectively bypassing rate-limiting protections. This vulnerability leaves the affected endpoints open to unthrottled credential guessing attacks.
References
security@huntr.devhttps://github.com/zenml-io/zenml/commit/8a2214bdd63eb8200ce4719d82c6f0d935e922d1
security@huntr.devhttps://huntr.com/bounties/3cb8bf6a-ae55-4b38-8da3-601c666a210e
134c704f-9b21-4f2e-91b3-4a467353bcc0https://huntr.com/bounties/3cb8bf6a-ae55-4b38-8da3-601c666a210e
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "zenml-io/zenml",
          "vendor": "zenml-io",
          "versions": [
            {
              "lessThan": "0.95.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@huntr.dev"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in zenml-io/zenml versions 0.57.0 through 0.94.2 allows an attacker to bypass rate-limiting on the `POST /api/v1/login` and self password-change endpoints by rotating the `X-Forwarded-For` header. The rate limiter keys requests by `request.client.host`, which is derived from the `X-Forwarded-For` header when Uvicorn is launched with `--proxy-headers --forwarded-allow-ips *`. This configuration allows clients to control the value of `request.client.host`, effectively bypassing rate-limiting protections. This vulnerability leaves the affected endpoints open to unthrottled credential guessing attacks."
    }
  ],
  "id": "CVE-2026-11922",
  "lastModified": "2026-07-24T13:17:23.790",
  "metrics": {
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5,
        "source": "security@huntr.dev",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-11922",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-24T12:23:58.855408Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-24T04:16:51.193",
  "references": [
    {
      "source": "security@huntr.dev",
      "url": "https://github.com/zenml-io/zenml/commit/8a2214bdd63eb8200ce4719d82c6f0d935e922d1"
    },
    {
      "source": "security@huntr.dev",
      "url": "https://huntr.com/bounties/3cb8bf6a-ae55-4b38-8da3-601c666a210e"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://huntr.com/bounties/3cb8bf6a-ae55-4b38-8da3-601c666a210e"
    }
  ],
  "sourceIdentifier": "security@huntr.dev",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-290"
        }
      ],
      "source": "security@huntr.dev",
      "type": "Secondary"
    }
  ]
}



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