Vulnerability-Lookup

FKIE_CVE-2026-15043

Vulnerability from fkie_nvd - Published: 2026-07-14 10:16 - Updated: 2026-07-14 16:44

Severity

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

Summary

DBI::SQL::Nano versions from 1.42 before 1.651 for Perl have inverted <= and >= SQL operators on text. DBI::SQL::Nano, DBI's built-in mini-SQL engine, evaluated WHERE predicates incorrectly in some cases. In the non-numeric string branch of the is_matched method, <= was evaluated using Perl's ge operator, and >= was evaluated using Perl's le operator. SQL::Nano is the fallback query engine for DBI's file-backed drivers (DBD::File, DBD::DBM, CSV-style drivers) whenever SQL::Statement is not installed, and is forced whenever DBI_SQL_NANO=1. Queries over such tables use these predicates directly. The impact depends on the context. Where an application relies on a WHERE clause to filter file-backed data for policy or authorization, an inverted <=/>= comparison silently returns the wrong rows.

References

	URL	Tags
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/perl5-dbi/dbi/commit/e9742ef85a75867cbd696860e3bf3e32b681f98d.patch
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/perl5-dbi/dbi/security/advisories/GHSA-mv45-ff6j-x9jp
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://metacpan.org/release/HMBRAND/DBI-1.651/changes
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/07/14/9

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "DBI",
          "product": "DBI::SQL::Nano",
          "programFiles": [
            "lib/DBI/SQL/Nano.pm"
          ],
          "programRoutines": [
            {
              "name": "DBI::SQL::Nano::is_matched"
            }
          ],
          "repo": "https://github.com/perl5-dbi/dbi",
          "vendor": "HMBRAND",
          "versions": [
            {
              "lessThan": "1.651",
              "status": "affected",
              "version": "1.42",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "DBI::SQL::Nano versions from 1.42 before 1.651 for Perl have inverted \u003c= and \u003e= SQL operators on text.\n\nDBI::SQL::Nano, DBI\u0027s built-in mini-SQL engine, evaluated WHERE predicates incorrectly in some cases. In the non-numeric string branch of the is_matched method, \u003c= was evaluated using Perl\u0027s ge operator, and \u003e= was evaluated using Perl\u0027s le operator.\n\nSQL::Nano is the fallback query engine for DBI\u0027s file-backed drivers (DBD::File, DBD::DBM, CSV-style drivers) whenever SQL::Statement is not installed, and is forced whenever DBI_SQL_NANO=1. Queries over such tables use these predicates directly.\n\nThe impact depends on the context. Where an application relies on a WHERE clause to filter file-backed data for policy or authorization, an inverted \u003c=/\u003e= comparison silently returns the wrong rows."
    }
  ],
  "id": "CVE-2026-15043",
  "lastModified": "2026-07-14T16:44:28.007",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-15043",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-14T14:14:59.552000Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-14T10:16:31.253",
  "references": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/perl5-dbi/dbi/commit/e9742ef85a75867cbd696860e3bf3e32b681f98d.patch"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/perl5-dbi/dbi/security/advisories/GHSA-mv45-ff6j-x9jp"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://metacpan.org/release/HMBRAND/DBI-1.651/changes"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/14/9"
    }
  ],
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-480"
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary"
    }
  ]
}

CVE-2026-15043 (GCVE-0-2026-15043)

Vulnerability from cvelistv5 – Published: 2026-07-14 09:44 – Updated: 2026-07-14 15:32

Title

DBI::SQL::Nano versions from 1.42 before 1.651 for Perl have inverted <= and >= SQL operators on text

Summary

Severity

9.8 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-14 14:14 UTC

CWE

CWE-480 - Use of Incorrect Operator

Assigner

CPANSec redhat root

References

4 references

URL	Tags
https://github.com/perl5-dbi/dbi/security/advisor…	vendor-advisory
https://metacpan.org/release/HMBRAND/DBI-1.651/changes	release-notes
https://github.com/perl5-dbi/dbi/commit/e9742ef85…	patch
http://www.openwall.com/lists/oss-security/2026/07/14/9

Impacted products

1 product

Vendor	Product	Version
HMBRAND	DBI::SQL::Nano	Affected: 1.42 , < 1.651 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-07-14T11:30:25.876Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/07/14/9"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-15043",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-14T14:14:59.552000Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-14T14:16:12.284Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "DBI",
          "product": "DBI::SQL::Nano",
          "programFiles": [
            "lib/DBI/SQL/Nano.pm"
          ],
          "programRoutines": [
            {
              "name": "DBI::SQL::Nano::is_matched"
            }
          ],
          "repo": "https://github.com/perl5-dbi/dbi",
          "vendor": "HMBRAND",
          "versions": [
            {
              "lessThan": "1.651",
              "status": "affected",
              "version": "1.42",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "DBI::SQL::Nano versions from 1.42 before 1.651 for Perl have inverted \u003c= and \u003e= SQL operators on text.\n\nDBI::SQL::Nano, DBI\u0027s built-in mini-SQL engine, evaluated WHERE predicates incorrectly in some cases. In the non-numeric string branch of the is_matched method, \u003c= was evaluated using Perl\u0027s ge operator, and \u003e= was evaluated using Perl\u0027s le operator.\n\nSQL::Nano is the fallback query engine for DBI\u0027s file-backed drivers (DBD::File, DBD::DBM, CSV-style drivers) whenever SQL::Statement is not installed, and is forced whenever DBI_SQL_NANO=1. Queries over such tables use these predicates directly.\n\nThe impact depends on the context. Where an application relies on a WHERE clause to filter file-backed data for policy or authorization, an inverted \u003c=/\u003e= comparison silently returns the wrong rows."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-480",
              "description": "CWE-480 Use of Incorrect Operator",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-14T15:32:33.329Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/perl5-dbi/dbi/security/advisories/GHSA-mv45-ff6j-x9jp"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/HMBRAND/DBI-1.651/changes"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/perl5-dbi/dbi/commit/e9742ef85a75867cbd696860e3bf3e32b681f98d.patch"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to DBI 1.651 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2004-03-12T00:00:00.000Z",
          "value": "Version 1.42 released with DBI::SQL::Nano."
        },
        {
          "lang": "en",
          "time": "2026-07-10T00:00:00.000Z",
          "value": "Patch that fixes DBI::SQL::Nano merged."
        },
        {
          "lang": "en",
          "time": "2026-07-14T00:00:00.000Z",
          "value": "Version 1.651 released."
        }
      ],
      "title": "DBI::SQL::Nano versions from 1.42 before 1.651 for Perl have inverted \u003c= and \u003e= SQL operators on text",
      "workarounds": [
        {
          "lang": "en",
          "value": "For deployments that cannot upgrade, apply the patch or install SQL::Statement."
        }
      ],
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-15043",
    "datePublished": "2026-07-14T09:44:25.733Z",
    "dateReserved": "2026-07-08T11:48:00.718Z",
    "dateUpdated": "2026-07-14T15:32:33.329Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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