---
id: "CVE-2026-110753"
kind: "vulnerability"
aliases: ["CVE-2026-110753"]
title: "Text::CSV_XS versions from 1.46 before 1.65 for Perl have a use-after-free of bind_columns variables when\u2026"
severity: "critical"
cvss: 9.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "perl", "text-csv-xs"]
not_affected_if: ["default-config", "no-bind-columns"]
published_at: "2026-10-16T23:17:00+00:00"
first_seen_at: "2026-10-23T21:57:14+00:00"
updated_at: "2026-10-23T22:28:55+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110753", "first_seen_at": "2026-10-23T21:57:14+00:00"}]
---

# Text::CSV_XS versions from 1.46 before 1.65 for Perl have a use-after-free of bind_columns variables when…

Text::CSV_XS, a Perl module for reading and writing CSV, frees a variable the application still holds when it skips an empty line. Later reads of that memory can crash the Perl process.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

Run: perl -MText::CSV_XS -e 'print $Text::CSV_XS::VERSION' and see whether it is 1.46 or higher but below 1.65.
Find users with: grep -rn 'bind_columns' and grep -rn 'skip_empty_rows' in your Perl code.

## Fix

Upgrade Text::CSV_XS to 1.65 or later.

## Timeline

- 2026-10-23T21:57:14+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-110753

## From the sources

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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