{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.4.0"
              },
              {
                "fixed": "1.15.4"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "f16a7526eb87c8953648dea2b7c57fe0c31e57f7"
            },
            {
              "fixed": "2cb7958d33030aa826b0c7404375844d4593d43a"
            },
            {
              "fixed": "33858427c7f2737d560a2e40a0c9a9270d77d1d7"
            },
            {
              "fixed": "aa69c5ece99c40ded88b8c6581ecc86664b0b734"
            },
            {
              "fixed": "d5dfffe25e975585227b1b85d247b0d14164bc45"
            },
            {
              "fixed": "df812a1527bae9e941965e897308a2b8bbf83a94"
            }
          ],
          "repo": "https://github.com/elixir-plug/plug",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-468c-vq7p-gh64"
  ],
  "database_specific": {
    "cna_assigner": "EEF",
    "cwe_ids": [
      "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8468.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "c52b2f32c90bccd718202bafccb5f95594e30183"
          },
          {
            "fixed": "*"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Allocation of Resources Without Limits or Throttling vulnerability in plug_project plug allows denial of service via unbounded buffer accumulation in multipart header parsing.\n\n'Elixir.Plug.Conn':read_part_headers/2 in lib/plug/conn.ex does not obey its :length parameter. There is no upper bound on the size of the accumulated buffer. By contrast, the sibling function read_part_body has an explicit byte_size(acc) \u003e length guard that stops accumulation once a limit is reached. No such guard exists in read_part_headers. An unauthenticated remote attacker can exhaust server memory by sending a crafted multipart/form-data request, causing a denial of service.\n\nThis issue affects plug from 1.4.0 before 1.15.4, 1.16.3, 1.17.1, 1.18.2, and 1.19.2.",
  "id": "CVE-2026-8468",
  "modified": "2026-07-08T05:38:24.810673283Z",
  "published": "2026-05-14T10:29:51.062Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-8466.html"
    },
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-8468.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-8468"
    },
    {
      "type": "WEB",
      "url": "https://repo.hex.pm"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8468.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/elixir-plug/plug/security/advisories/GHSA-468c-vq7p-gh64"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8468"
    },
    {
      "type": "FIX",
      "url": "https://github.com/elixir-plug/plug/commit/2cb7958d33030aa826b0c7404375844d4593d43a"
    },
    {
      "type": "FIX",
      "url": "https://github.com/elixir-plug/plug/commit/33858427c7f2737d560a2e40a0c9a9270d77d1d7"
    },
    {
      "type": "FIX",
      "url": "https://github.com/elixir-plug/plug/commit/aa69c5ece99c40ded88b8c6581ecc86664b0b734"
    },
    {
      "type": "FIX",
      "url": "https://github.com/elixir-plug/plug/commit/d5dfffe25e975585227b1b85d247b0d14164bc45"
    },
    {
      "type": "FIX",
      "url": "https://github.com/elixir-plug/plug/commit/df812a1527bae9e941965e897308a2b8bbf83a94"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/elixir-plug/plug"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Unbounded buffer accumulation in multipart header parsing causes denial of service in plug"
}