CVE-2026-110753
Received Received - Intake

Use-After-Free in Text::CSV_XS Perl Module

Vulnerability report for CVE-2026-110753, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-16

Last updated on: 2026-10-16

Assigner: CPANSec

Description

Text::CSV_XS versions from 1.46 before 1.65 for Perl have a use-after-free of bind_columns variables when skip_empty_rows skips an empty line in getline. With bind_columns, the parser writes each field into the caller's own scalar without taking a reference to it. When skip_empty_rows skips an empty last line, the parser frees the current field scalar without checking whether it is bound, dropping one reference from the application's variable. The "eof" mode does the same on any empty line. The variable is then freed while the application still references it, so later code uses freed memory and can crash the process.

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Meta Information

Published
2026-10-16
Last Modified
2026-10-16
Generated
2026-10-17
AI Q&A
2026-10-17
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
perl text to 1.65 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
CWE-911 The product uses a reference count to manage a resource, but it does not update or incorrectly updates the reference count.

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Executive Summary

This vulnerability is a use-after-free issue in Text::CSV_XS versions 1.46 to 1.65 for Perl. When skip_empty_rows skips an empty line during getline, the parser frees a field scalar without checking if it is bound to an application variable. This causes the application to reference freed memory, potentially crashing the process.

Detection Guidance

This vulnerability is specific to Perl's Text::CSV_XS module and requires code inspection rather than network scanning. Check if your Perl scripts use Text::CSV_XS with bind_columns and skip_empty_rows enabled. Review the module version; versions before 1.65 are vulnerable.

Impact Analysis

This vulnerability can cause crashes in applications using Text::CSV_XS with bind_columns and skip_empty_rows enabled. If exploited, it may lead to denial-of-service conditions or unexpected behavior in Perl-based software processing CSV files.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR, HIPAA, or similar standards as it is a use-after-free issue in a Perl CSV parsing library. Compliance impacts would only occur if the vulnerability leads to data corruption or processing failures in systems handling sensitive data.

Mitigation Strategies

Upgrade Text::CSV_XS to version 1.65 or later to address the use-after-free vulnerability in bind_columns variables.

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