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

Vulnerability from cvelistv5 – Published: 2026-07-14 09:44 – Updated: 2026-07-14 15:32
VLAI
Title
DBI::SQL::Nano versions from 1.42 before 1.651 for Perl have inverted <= and >= SQL operators on text
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.
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
References
Impacted products
Vendor Product Version CPE status
HMBRAND DBI::SQL::Nano Affected: 1.42 , < 1.651 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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