Vulnerability-Lookup

CVE-2026-46373 (GCVE-0-2026-46373)

Vulnerability from cvelistv5 – Published: 2026-06-09 22:38 – Updated: 2026-06-10 14:28

Title

SQLFluff: Recursive Stack Overflow in Parser

Summary

SQLFluff is a modular SQL linter and auto-formatter with support for multiple dialects and templated code. Prior to version 4.1.0, in deployments where untrusted users can provide SQL queries to be linted, an untrusted user can submit a malicious query with deliberate excessive nesting to any application using the parser to trigger a Denial of Service through resource exhaustion. This issue has been patched in version 4.1.0.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-674 - Uncontrolled Recursion

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/sqlfluff/sqlfluff/security/adv…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
sqlfluff	sqlfluff	Affected: < 4.1.0

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-46373

Vulnerability from fkie_nvd - Published: 2026-06-09 23:16 - Updated: 2026-07-23 09:10

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/sqlfluff/sqlfluff/security/advisories/GHSA-wmhf-fqc8-vxhh	Vendor Advisory

Impacted products

	Vendor	Product	Version
	sqlfluff	sqlfluff	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "sqlfluff",
          "vendor": "sqlfluff",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4.1.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
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              "criteria": "cpe:2.3:a:sqlfluff:sqlfluff:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "80AEEC21-C29E-4A72-BDB6-48584BCFBC6C",
              "versionEndExcluding": "4.1.0",
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    },
    {
      "lang": "es",
      "value": "SQLFluff es un linter y autoformateador de SQL modular con soporte para m\u00faltiples dialectos y c\u00f3digo con plantillas. Antes de la versi\u00f3n 4.1.0, en implementaciones donde usuarios no confiables pueden proporcionar consultas SQL para ser analizadas, un usuario no confiable puede enviar una consulta maliciosa con anidamiento excesivo deliberado a cualquier aplicaci\u00f3n que utilice el analizador para desencadenar una denegaci\u00f3n de servicio a trav\u00e9s del agotamiento de recursos. Este problema ha sido parcheado en la versi\u00f3n 4.1.0."
    }
  ],
  "id": "CVE-2026-46373",
  "lastModified": "2026-07-23T09:10:00.113",
  "metrics": {
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      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
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          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
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          "scope": "UNCHANGED",
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GHSA-WMHF-FQC8-VXHH

Vulnerability from github – Published: 2026-05-19 20:10 – Updated: 2026-07-06 22:53

Summary

SQLFluff: Recursive Stack Overflow in Parser

Details

Impact

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

Patches

Versions 4.1.0 and up contain a configurable recursion 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

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "sqlfluff"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-46373"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-19T20:10:17Z",
    "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 query with deliberate excessive nesting to any application using the parser to trigger a Denial of Service through resource exhaustion.\n\n### Patches\n\nVersions 4.1.0 and up contain a configurable recursion 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-wmhf-fqc8-vxhh",
  "modified": "2026-07-06T22:53:18Z",
  "published": "2026-05-19T20:10:17Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/sqlfluff/sqlfluff/security/advisories/GHSA-wmhf-fqc8-vxhh"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46373"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/sqlfluff/PYSEC-2026-209.yaml"
    },
    {
      "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: Recursive Stack Overflow in Parser"
}

PYSEC-2026-209

Vulnerability from pysec - Published: 2026-06-09 23:16 - Updated: 2026-06-13 09:38

Details

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impacted products

Name	purl
sqlfluff	pkg:pypi/sqlfluff

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "PyPI",
        "name": "sqlfluff",
        "purl": "pkg:pypi/sqlfluff"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0.1",
        "0.0.2",
        "0.0.3",
        "0.0.4",
        "0.0.5",
        "0.0.6",
        "0.0.7",
        "0.0.9",
        "0.1.0",
        "0.1.1",
        "0.1.2",
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        "2.3.5",
        "3.0.0",
        "3.0.0a1",
        "3.0.0a2",
        "3.0.0a3",
        "3.0.0a4",
        "3.0.0a5",
        "3.0.0a6",
        "3.0.1",
        "3.0.2",
        "3.0.3",
        "3.0.4",
        "3.0.5",
        "3.0.6",
        "3.0.7",
        "3.1.0",
        "3.1.1",
        "3.2.0",
        "3.2.1",
        "3.2.2",
        "3.2.3",
        "3.2.4",
        "3.2.5",
        "3.3.0",
        "3.3.1",
        "3.4.0",
        "3.4.1",
        "3.4.2",
        "3.5.0",
        "4.0.0",
        "4.0.0a1",
        "4.0.0a2",
        "4.0.0a3",
        "4.0.1.post1",
        "4.0.3",
        "4.0.4",
        "4.0.4a1"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-46373",
    "GHSA-wmhf-fqc8-vxhh"
  ],
  "details": "SQLFluff is a modular SQL linter and auto-formatter with support for multiple dialects and templated code. Prior to version 4.1.0, in deployments where untrusted users can provide SQL queries to be linted, an untrusted user can submit a malicious query with deliberate excessive nesting to any application using the parser to trigger a Denial of Service through resource exhaustion. This issue has been patched in version 4.1.0.",
  "id": "PYSEC-2026-209",
  "modified": "2026-06-13T09:38:42.362943Z",
  "published": "2026-06-09T23:16:59.167Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/sqlfluff/sqlfluff/security/advisories/GHSA-wmhf-fqc8-vxhh"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

ubuntu-cve-2026-46373

Vulnerability from osv_ubuntu

Published

2026-06-09 23:16

Modified

2026-06-09 23:16

Summary

Details

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-46373	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-46373	REPORT
	https://github.com/sqlfluff/sqlfluff/security/adv…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "sqlfluff",
            "binary_version": "2.3.5-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "sqlfluff",
        "purl": "pkg:deb/ubuntu/sqlfluff@2.3.5-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.5-2",
        "2.3.5-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "sqlfluff",
            "binary_version": "3.3.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "sqlfluff",
        "purl": "pkg:deb/ubuntu/sqlfluff@3.3.1-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.3.1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "sqlfluff",
            "binary_version": "3.5.0-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "sqlfluff",
        "purl": "pkg:deb/ubuntu/sqlfluff@3.5.0-2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.3.1-1",
        "3.4.2-2",
        "3.5.0-1",
        "3.5.0-1ubuntu1",
        "3.5.0-2"
      ]
    }
  ],
  "aliases": [],
  "details": "SQLFluff is a modular SQL linter and auto-formatter with support for multiple dialects and templated code. Prior to version 4.1.0, in deployments where untrusted users can provide SQL queries to be linted, an untrusted user can submit a malicious query with deliberate excessive nesting to any application using the parser to trigger a Denial of Service through resource exhaustion. This issue has been patched in version 4.1.0.",
  "id": "UBUNTU-CVE-2026-46373",
  "modified": "2026-06-09T23:16:00Z",
  "published": "2026-06-09T23:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-46373"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46373"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sqlfluff/sqlfluff/security/advisories/GHSA-wmhf-fqc8-vxhh"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-46373"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-46373 (GCVE-0-2026-46373)

FKIE_CVE-2026-46373

GHSA-WMHF-FQC8-VXHH

Impact

Patches

Credit

PYSEC-2026-209

ubuntu-cve-2026-46373

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature