---
id: CVE-2026-110752
title: >-
  Text::CSV_XS versions before 1.65 for Perl allow memory exhaustion by
  allocating one entry per index of an RFC 7111 selector in fragment
summary: >-
  Text::CSV_XS versions before 1.65 for Perl allow memory exhaustion by
  allocating one entry per index of an RFC 7111 selector in fragment.


  fragment expands a row= or col= selector into an array with one element per
  selected index before …
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cvssSource: adp
cwe:
  - CWE-770
vendor: Red Hat
product: Text-CSV_XS
affected:
  - Text-CSV_XS < 1.65
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-20T18:12:15.473604Z'
published: '2026-10-16'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T18:12:38.953Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-110752'
references:
  - url: >-
      https://github.com/cpan-authors/Text-CSV_XS/commit/d9d3d66f9ff6a8a1bc255a6ef05100f9b102b92b.patch
  - url: 'https://metacpan.org/release/HMBRAND/Text-CSV_XS-1.65/changes'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110752.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-110752'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2554509'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-110752'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110752'
tags:
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00408
epssPercentile: 0.34915
ingestedAt: '2026-10-16T22:54:45.853Z'
---

## Overview

Text::CSV_XS versions before 1.65 for Perl allow memory exhaustion by allocating one entry per index of an RFC 7111 selector in fragment.

fragment expands a row= or col= selector into an array with one element per selected index before it reads any data, and it does not clamp an explicit end column in a cell= selector to the row. Only the syntax and order of the ranges are checked, so row=1-400000000 on a two-line file allocates 400 million elements.

An application that passes a request-supplied fragment to fragment or csv can be made to exhaust memory, which ends the process with an Out of memory error that eval cannot catch.

## Affected

- `Text-CSV_XS < 1.65`

## Remediation

Upgrade to Text-CSV_XS 1.65 or later.

## Vendor advisories

- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 9 · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110752.json)