CVE-2026-15043
Description
A flaw was found in DBI::SQL::Nano, a mini-SQL engine for Perl. This vulnerability occurs because the engine incorrectly evaluates SQL operators for text comparisons, specifically inverting the logic for "less than or equal to" and "greater than or equal to" operations. This can lead to applications that rely on these comparisons for filtering data, such as for policy or authorization, silently returning incorrect results. The impact of this flaw depends on how an application uses these SQL queries.
Statement
A Moderate impact flaw in perl-DBI's SQL::Nano engine can lead to incorrect data filtering. This issue arises when applications use file-backed drivers with SQL::Nano as the fallback SQL engine, causing text comparison operators (<= and >=) to be inverted. This could result in applications silently returning incorrect data, potentially affecting policy enforcement or authorization decisions.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.3 | N/A | 9.8 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | Low | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | High |
| Integrity Impact | Low | N/A | High |
| Availability Impact | None | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Other
Technical Impact: Alter Execution Logic
This weakness can cause unintended logic to be executed and other unexpected application behavior.
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