CVE-2026-110753
Description
A flaw was found in perl-text-csv_xs. This flaw allows an attacker who supplies specially crafted CSV input to trigger a Denial of Service (DoS). When processing CSV data configured with bound column variables, the parser improperly releases memory references upon encountering empty rows. Subsequent access to this freed memory leads to a use-after-free condition, causing the application to crash.
Statement
This vulnerability is rated as having Moderate impact for Red Hat Enterprise Linux because exploitation requires processing specially crafted CSV input with specific column-binding and empty-row skipping configurations, resulting primarily in an application crash. Because perl-Text-CSV_XS functions as a parsing library rather than an exposed network service, an attacker cannot trigger this condition remotely unless a consumer application accepts untrusted data. Consequently, the blast radius is confined to local denial of service affecting the execution of the consuming Perl process.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
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 | 5.5 | N/A | 9.8 |
| Attack Vector | Local | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | Required | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | High |
| Integrity Impact | None | N/A | High |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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