{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-84379",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-02T18:20:04.628894Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-02T18:20:46.599Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/pydantic/httpx2/security/advisories/GHSA-h4x7-gw46-3wm6"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "httpx2",
          "vendor": "pydantic",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.11.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "HTTPX2 is a next generation HTTP client for Python. Prior to 2.11.0, FileField.render_headers() in src/httpx2/httpx2/_multipart.py directly interpolates attacker-controlled content_type values and custom headers from the files= three-element (filename, content, content_type) tuple and the files= four-element (filename, content, content_type, headers) tuple into multipart/form-data part headers without validating header names or values. CR or LF characters can terminate a part header, inject additional part headers, or end the part header block early, allowing a downstream multipart parser to treat attacker-supplied lines as genuine headers and potentially alter part semantics or bypass header-based checks. This issue is fixed in version 2.11.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-93",
              "description": "CWE-93: Improper Neutralization of CRLF Sequences (\u0027CRLF Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-02T17:57:17.092Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/pydantic/httpx2/security/advisories/GHSA-h4x7-gw46-3wm6",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/pydantic/httpx2/security/advisories/GHSA-h4x7-gw46-3wm6"
        },
        {
          "name": "https://github.com/pydantic/httpx2/pull/1142",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/httpx2/pull/1142"
        },
        {
          "name": "https://github.com/pydantic/httpx2/commit/de96d810ee4e309d118982fe7084a46a2bcd600d",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/httpx2/commit/de96d810ee4e309d118982fe7084a46a2bcd600d"
        },
        {
          "name": "https://github.com/pydantic/httpx2/releases/tag/v2.11.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pydantic/httpx2/releases/tag/v2.11.0"
        }
      ],
      "source": {
        "advisory": "GHSA-h4x7-gw46-3wm6",
        "discovery": "UNKNOWN"
      },
      "title": "HTTPX2: Multipart part header injection via unvalidated file Content-Type and custom headers"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-84379",
    "datePublished": "2026-09-02T17:57:17.092Z",
    "dateReserved": "2026-09-01T16:27:58.130Z",
    "dateUpdated": "2026-09-02T18:20:46.599Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.2"
}