{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": [
              "cpe:2.3:a:actix:actix-http:*:*:*:*:*:rust:*:*",
              "cpe:2.3:a:actix:actix-http:3.0.0:-:*:*:*:rust:*:*"
            ],
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.0.0"
              },
              {
                "introduced": "3.0.0-NA"
              },
              {
                "last_affected": "3.0.0-NA"
              }
            ],
            "source": [
              "CPE_RANGE",
              "CPE_STRING"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "64a2c13cdfed3616bf6f3ac2c39a5e1b40bfada4"
            },
            {
              "introduced": "64a2c13cdfed3616bf6f3ac2c39a5e1b40bfada4"
            },
            {
              "last_affected": "64a2c13cdfed3616bf6f3ac2c39a5e1b40bfada4"
            }
          ],
          "repo": "https://github.com/actix/actix-web",
          "type": "GIT"
        }
      ],
      "versions": [
        "3.0.0-NA"
      ]
    }
  ],
  "database_specific": {
    "unresolved_ranges": [
      {
        "cpes": [
          "cpe:2.3:a:actix:actix-http:3.0.0:beta1:*:*:*:rust:*:*",
          "cpe:2.3:a:actix:actix-http:3.0.0:beta2:*:*:*:rust:*:*",
          "cpe:2.3:a:actix:actix-http:3.0.0:beta3:*:*:*:rust:*:*",
          "cpe:2.3:a:actix:actix-http:3.0.0:beta4:*:*:*:rust:*:*",
          "cpe:2.3:a:actix:actix-http:3.0.0:beta5:*:*:*:rust:*:*",
          "cpe:2.3:a:actix:actix-http:3.0.0:beta6:*:*:*:rust:*:*",
          "cpe:2.3:a:actix:actix-http:3.0.0:beta7:*:*:*:rust:*:*",
          "cpe:2.3:a:actix:actix-http:3.0.0:beta8:*:*:*:rust:*:*"
        ],
        "extracted_events": [
          {
            "introduced": "3.0.0-beta1"
          },
          {
            "last_affected": "3.0.0-beta1"
          },
          {
            "introduced": "3.0.0-beta2"
          },
          {
            "last_affected": "3.0.0-beta2"
          },
          {
            "introduced": "3.0.0-beta3"
          },
          {
            "last_affected": "3.0.0-beta3"
          },
          {
            "introduced": "3.0.0-beta4"
          },
          {
            "last_affected": "3.0.0-beta4"
          },
          {
            "introduced": "3.0.0-beta5"
          },
          {
            "last_affected": "3.0.0-beta5"
          },
          {
            "introduced": "3.0.0-beta6"
          },
          {
            "last_affected": "3.0.0-beta6"
          },
          {
            "introduced": "3.0.0-beta7"
          },
          {
            "last_affected": "3.0.0-beta7"
          },
          {
            "introduced": "3.0.0-beta8"
          },
          {
            "last_affected": "3.0.0-beta8"
          }
        ],
        "source": "CPE_STRING",
        "vendor_product": "actix:actix-http"
      },
      {
        "cpes": [
          "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
        ],
        "extracted_events": [
          {
            "introduced": "34"
          },
          {
            "last_affected": "34"
          }
        ],
        "source": "CPE_STRING",
        "vendor_product": "fedoraproject:fedora"
      }
    ]
  },
  "details": "An issue was discovered in the actix-http crate before 3.0.0-beta.9 for Rust. HTTP/1 request smuggling (aka HRS) can occur, potentially leading to credential disclosure.",
  "id": "CVE-2021-38512",
  "modified": "2026-07-08T05:36:35.731337542Z",
  "published": "2021-08-10T23:15:07.277Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/67URRW4K47SR6LNQB4YALPLGGQMQK7HO/"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0081.html"
    },
    {
      "type": "EVIDENCE",
      "url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/actix-http/RUSTSEC-2021-0081.md"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}