{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.5.0"
              },
              {
                "fixed": "1.20.1"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "117b2bf614d4b74281ff6dfe0e0e95caf50ff100"
            },
            {
              "fixed": "97c1e1ec0cb4e5ab0a56057730229ba482607285"
            },
            {
              "fixed": "c64417d72fd5c7d09e963ca3ac5fa2b140978d9e"
            }
          ],
          "repo": "https://github.com/elixir-lang/elixir",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-w2h8-8x3g-278p"
  ],
  "database_specific": {
    "cna_assigner": "EEF",
    "cwe_ids": [
      "CWE-400"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49762.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "63e186aea94395897dc4964d82d250130c01ec25"
          },
          {
            "fixed": "c64417d72fd5c7d09e963ca3ac5fa2b140978d9e"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Uncontrolled Resource Consumption vulnerability in the Elixir standard library's Version module allows an attacker who controls a version string to cause a denial of service through CPU and memory exhaustion.\n\nThe version parser converts numeric version components (major, minor, patch and numeric pre-release/build identifiers) to integers without bounding their length. A single large all-digit component therefore forces a super-linear, non-yielding base-10 to arbitrary-precision integer conversion (String.to_integer/1, i.e. :erlang.binary_to_integer/1) that pins a BEAM scheduler, and a larger component raises an uncaught SystemLimitError that crashes the calling process. A single moderately sized string (around one megabyte) is enough; no authentication is required.\n\nThis is reachable from the public entry points Version.parse/1, Version.parse!/1, Version.match?/3, Version.compare/2, and Version.parse_requirement/1, which applications routinely call on untrusted input such as HTTP parameters, dependency-manifest fields, and package metadata.\n\nThis vulnerability is associated with program files lib/version.ex and program routines 'Elixir.Version.Parser':parse_digits/2.\n\nThis issue affects Elixir: from 1.5.0 before 1.20.1.",
  "id": "CVE-2026-49762",
  "modified": "2026-07-08T05:38:52.121697439Z",
  "published": "2026-06-09T14:04:07.405Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-49762.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-49762"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49762.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/elixir-lang/elixir/security/advisories/GHSA-w2h8-8x3g-278p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49762"
    },
    {
      "type": "FIX",
      "url": "https://github.com/elixir-lang/elixir/commit/c64417d72fd5c7d09e963ca3ac5fa2b140978d9e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/elixir-lang/elixir"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/elixir-lang/elixir.git"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Unbounded integer parsing in the Version module enables CPU and memory exhaustion denial of service"
}