ghsa-8554-jxcw-454q
Vulnerability from github
Published
2019-03-12 15:16
Modified
2025-08-04 21:03
Severity ?
8.1 (High) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.2 (High) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Summary
Webargs mishandles concurrent JSON parsing
Details

An issue was discovered in webargs before 5.1.3, as used with marshmallow and other products. JSON parsing uses a short-lived cache to store the parsed JSON body. This cache is not thread-safe, meaning that incorrect JSON payloads could have been parsed for concurrent requests.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "webargs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-9710"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:24:21Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "An issue was discovered in webargs before 5.1.3, as used with marshmallow and other products. JSON parsing uses a short-lived cache to store the parsed JSON body. This cache is not thread-safe, meaning that incorrect JSON payloads could have been parsed for concurrent requests.",
  "id": "GHSA-8554-jxcw-454q",
  "modified": "2025-08-04T21:03:04Z",
  "published": "2019-03-12T15:16:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9710"
    },
    {
      "type": "WEB",
      "url": "https://github.com/marshmallow-code/webargs/issues/371"
    },
    {
      "type": "WEB",
      "url": "https://github.com/marshmallow-code/webargs/pull/373"
    },
    {
      "type": "WEB",
      "url": "https://github.com/marshmallow-code/webargs/commit/716bd8d1f24c84aaf99170efaa17d1d34206f6c0"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/marshmallow-code/webargs"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/webargs/PYSEC-2019-139.yaml"
    },
    {
      "type": "WEB",
      "url": "https://webargs.readthedocs.io/en/latest/changelog.html"
    },
    {
      "type": "WEB",
      "url": "https://webargs.readthedocs.io/en/latest/changelog.html#id24"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Webargs mishandles concurrent JSON parsing"
}


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