{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.3.1"
              },
              {
                "fixed": "1.0.0"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "387eb5df5413fe89d7b62246d6e5b094fd82e0f5"
            },
            {
              "fixed": "8105f803030f7f5ae1d722251ee6ab2e36878830"
            },
            {
              "fixed": "49e18c3ec6bb9afe2f712caad3dbab5c56a68a00"
            }
          ],
          "repo": "https://github.com/elixir-grpc/grpc",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-q8gf-9rvj-gmgj"
  ],
  "database_specific": {
    "cna_assigner": "EEF",
    "cwe_ids": [
      "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48854.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "d1abe70a6cad6dac4a3f8235d883d7c896989560"
          },
          {
            "fixed": "49e18c3ec6bb9afe2f712caad3dbab5c56a68a00"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Allocation of Resources Without Limits or Throttling vulnerability in elixir-grpc grpc allows unauthenticated attackers to exhaust the BEAM's memory and crash the server by streaming a large or slow-trickle unary request body.\n\n'Elixir.GRPC.Server.Adapters.Cowboy.Handler':read_full_body/3 (lib/grpc/server/adapters/cowboy/handler.ex) accumulates every received chunk into a single growing binary with no size cap. Additionally, when the client omits the grpc-timeout header, the per-chunk read timeout resolves to :infinity, allowing a slow-trickle client to keep the connection alive indefinitely while memory grows. A single connection is sufficient to exhaust server memory and crash the node.\n\nThis issue affects grpc from 0.3.1 before 1.0.0.",
  "id": "CVE-2026-48854",
  "modified": "2026-07-15T01:48:52.342210724Z",
  "published": "2026-06-15T21:55:23.629Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-48854.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-48854"
    },
    {
      "type": "WEB",
      "url": "https://repo.hex.pm"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48854.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/elixir-grpc/grpc/security/advisories/GHSA-q8gf-9rvj-gmgj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48854"
    },
    {
      "type": "FIX",
      "url": "https://github.com/elixir-grpc/grpc/commit/49e18c3ec6bb9afe2f712caad3dbab5c56a68a00"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/elixir-grpc/grpc"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Unbounded request body accumulation causes memory exhaustion in elixir-grpc/grpc"
}