GHSA-73JC-5MRQ-PRW7

Vulnerability from github – Published: 2026-05-19 20:10 – Updated: 2026-06-10 13:40
VLAI
Summary
SQLFluff: Uncontrolled Resource Consumption in SQLFluff Parser
Details

Impact

In deployments where untrusted users can provide SQL queries to be linted, an untrusted user can submit a malicious long query to any application using the parser to trigger a Denial of Service through resource exhaustion.

Patches

Versions 4.2.0 and up contain a configurable parse node limit, which is enabled by default, to prevent this manner of exploit.

Credit

Ori Nakar from Imperva Threat Research Team.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "sqlfluff"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-46374"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-19T20:10:53Z",
    "nvd_published_at": "2026-06-09T23:16:59Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nIn deployments where untrusted users can provide SQL queries to be linted, an untrusted user can submit a malicious long query to any application using the parser to trigger a Denial of Service through resource exhaustion.\n\n### Patches\n\nVersions 4.2.0 and up contain a configurable parse node limit, which is enabled by default, to prevent this manner of exploit.\n\n### Credit\n\nOri Nakar from Imperva Threat Research Team.",
  "id": "GHSA-73jc-5mrq-prw7",
  "modified": "2026-06-10T13:40:55Z",
  "published": "2026-05-19T20:10:53Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/sqlfluff/sqlfluff/security/advisories/GHSA-73jc-5mrq-prw7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46374"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/sqlfluff/sqlfluff"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "SQLFluff: Uncontrolled Resource Consumption in SQLFluff Parser"
}


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Nomenclature

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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