{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:lightbend:akka-http:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "10.1.14"
              },
              {
                "introduced": "10.2.0"
              },
              {
                "fixed": "10.2.4"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "dee7063926b0058989d72a84629a4176ce6f9283"
            },
            {
              "introduced": "80ebb83d75f1c6c45ded2901efbe97dd43c2051d"
            },
            {
              "fixed": "af9aae88ab045c3bb7096b8c83f66abec48f51fe"
            }
          ],
          "repo": "https://github.com/akka/akka-http",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "SNYK-JAVA-COMTYPESAFEAKKA-1075043"
  ],
  "database_specific": {},
  "details": "This affects all versions before 10.1.14 and from 10.2.0 to 10.2.4 of package com.typesafe.akka:akka-http-core. It allows multiple Transfer-Encoding headers.",
  "id": "CVE-2021-23339",
  "modified": "2026-07-08T05:38:10.914384200Z",
  "published": "2021-02-17T08:15:11.330Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://snyk.io/vuln/SNYK-JAVA-COMTYPESAFEAKKA-1075043"
    },
    {
      "type": "FIX",
      "url": "https://github.com/akka/akka-http/pull/3754%23issuecomment-779265201"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}