{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-23527",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-15T19:59:57.020909Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-15T20:00:06.302Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "h3",
          "vendor": "h3js",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.15.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "H3 is a minimal H(TTP) framework built for high performance and portability. Prior to 1.15.5, there is a critical HTTP Request Smuggling vulnerability. readRawBody is doing a strict case-sensitive check for the Transfer-Encoding header. It explicitly looks for \"chunked\", but per the RFC, this header should be case-insensitive. This vulnerability is fixed in 1.15.5."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.9,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-444",
              "description": "CWE-444: Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-15T19:24:20.514Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/h3js/h3/security/advisories/GHSA-mp2g-9vg9-f4cg",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/h3js/h3/security/advisories/GHSA-mp2g-9vg9-f4cg"
        },
        {
          "name": "https://github.com/h3js/h3/commit/618ccf4f37b8b6148bea7f36040471af45bfb097",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/h3js/h3/commit/618ccf4f37b8b6148bea7f36040471af45bfb097"
        }
      ],
      "source": {
        "advisory": "GHSA-mp2g-9vg9-f4cg",
        "discovery": "UNKNOWN"
      },
      "title": "Request Smuggling (TE.TE) in h3 v1"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-23527",
    "datePublished": "2026-01-15T19:24:20.514Z",
    "dateReserved": "2026-01-13T18:22:43.981Z",
    "dateUpdated": "2026-01-15T20:00:06.302Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}