Bug 2501292 - CVE-2026-15043 perl-DBI: DBI::SQL::Nano: Incorrect SQL operator evaluation can lead to incorrect data filtering. [fedora-all]
Summary: CVE-2026-15043 perl-DBI: DBI::SQL::Nano: Incorrect SQL operator evaluation ca...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: perl-DBI
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Jitka Plesnikova
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["706ae694-0b64-4769-b535-7...
Depends On:
Blocks: CVE-2026-15043
TreeView+ depends on / blocked
 
Reported: 2026-07-16 11:29 UTC by Tomas Hoger
Modified: 2026-07-23 01:19 UTC (History)
5 users (show)

Fixed In Version: perl-DBI-1.651-1.fc43 perl-DBI-1.651-1.fc44
Clone Of:
Environment:
Last Closed: 2026-07-23 01:02:56 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Tomas Hoger 2026-07-16 11:29:20 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.

Comment 1 Fedora Update System 2026-07-20 16:48:48 UTC
FEDORA-2026-c0abcba354 (perl-DBI-1.651-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-c0abcba354

Comment 2 Fedora Update System 2026-07-20 16:49:01 UTC
FEDORA-2026-1c5ffc6018 (perl-DBI-1.651-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-1c5ffc6018

Comment 3 Fedora Update System 2026-07-21 01:38:06 UTC
FEDORA-2026-c0abcba354 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-c0abcba354`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-c0abcba354

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Fedora Update System 2026-07-21 02:00:10 UTC
FEDORA-2026-1c5ffc6018 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-1c5ffc6018`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-1c5ffc6018

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-07-23 01:02:56 UTC
FEDORA-2026-c0abcba354 (perl-DBI-1.651-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 6 Fedora Update System 2026-07-23 01:19:48 UTC
FEDORA-2026-1c5ffc6018 (perl-DBI-1.651-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.


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