| Name | CVE-2026-15043 |
| Description | 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1142072 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libdbi-perl (PTS) | bullseye | 1.643-3 | vulnerable |
| bullseye (security) | 1.643-3+deb11u1 | vulnerable | |
| bookworm, bookworm (security) | 1.643-4+deb12u1 | vulnerable | |
| trixie (security), trixie | 1.647-1+deb13u1 | vulnerable | |
| forky, sid | 1.650-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libdbi-perl | source | (unstable) | (unfixed) | 1142072 |
https://lists.security.metacpan.org/cve-announce/msg/41805128/
https://github.com/perl5-dbi/dbi/security/advisories/GHSA-mv45-ff6j-x9jp
Fixed by: https://github.com/perl5-dbi/dbi/commit/e9742ef85a75867cbd696860e3bf3e32b681f98d (1.651)