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CVE-2026-110752

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

7.5 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.41%Up 0.2 points since Oct 17, 2026
90%50%10%1%

What each source reports

CVE List Score used 7.5

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

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.

Record
CVE-2026-110752
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-770
Updated
2026-11-02
EUVDEUVD-2026-103192 7.5

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.

Record
EUVD-2026-103192
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-c8hf-63cr-rrfm 7.5

Text::CSV_XS versions before 1.65 for Perl allow memory exhaustion by allocating one entry per...

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.

Record
GHSA-c8hf-63cr-rrfm
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-770
Updated
2026-11-02
NVD 7.5

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.

Record
CVE-2026-110752
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-770
Updated
2026-11-02
OSV 7.5

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

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.

Record
CVE-2026-110752
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-770
Updated
2026-11-06
OSVDEBIAN-CVE-2026-110752 7.5

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.

Record
DEBIAN-CVE-2026-110752
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 5 moreShow less
OSVUBUNTU-CVE-2026-110752 7.5

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.

Record
UBUNTU-CVE-2026-110752
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVAZL-109745 No score

CVE-2026-110752 affecting package perl-Text-CSV_XS 1.60-1

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.

Record
AZL-109745
Updated
2026-11-05
OSVMGASA-2026-0563 No score

Updated perl-Text-CSV_XS package fixes security vulnerabilities

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. (CVE-2026-110752) 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. (CVE-2026-110753) Text::CSV_XS versions before 1.65 for Perl leak the parsed fields of a record that fails to parse in getline. (CVE-2026-110754) Text::CSV_XS versions before 1.65 for Perl allow quadratic CPU use by copying the unparsed remainder per record of CR-only input in getline. (CVE-2026-110755) Text::CSV_XS versions before 1.65 for Perl drop the end of a record and its line ending when a UTF-8 flagged field precedes invalid UTF-8 bytes in print. (CVE-2026-110756) Text::CSV_XS versions before 1.65 for Perl allow record splitting by writing strings used as numbers without quotes in combine. (CVE-2026-110757) Text::CSV_XS versions before 1.65 for Perl read before the start of an all-blank field under allow_whitespace in strip_trail_whitespace. (CVE-2026-110758) Text::CSV_XS versions before 1.65 for Perl return a 0xFF byte that is not in the input for an empty last field followed by a lone CR in parse. (CVE-2026-110759)

Record
MGASA-2026-0563
Updated
2026-11-02
OSVopenSUSE-SU-2026:12218-1 No score

perl-Text-CSV_XS-1.650.0-1.1 on GA media

These are all security issues fixed in the perl-Text-CSV_XS-1.650.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:12218-1
Updated
2026-11-02
OSVSUSE-SU-2026:5120-1 No score

Security update for perl-Text-CSV_XS

This update for perl-Text-CSV_XS fixes the following issues:

  • CVE-2026-110752: unclamped RFC 7111 selector range pre-allocation in fragment() can cause memory exhaustion via large index ranges (bsc#1286138).
  • CVE-2026-110754: unfreed field array memory leak on getline() syntax errors can lead to process memory exhaustion via malformed CSV input (bsc#1286188).
  • CVE-2026-110755: quadratic buffer copying overhead during CR-only line parsing in getline() can cause CPU exhaustion and denial of service (bsc#1286198).
  • CVE-2026-110756: invalid UTF-8 bytes during buffer flushes in print() can cause silent field truncation (bsc#1286130).
  • CVE-2026-110757: unquoted writing of numeric-flagged strings containing newlines in combine() and print() can cause record splitting and row injection (bsc#1286191).
  • CVE-2026-110758: missing buffer start boundary check in strip_trail_whitespace under allow_whitespace can cause heap out-of-bounds read and memory corruption (bsc#1286137).
  • CVE-2026-110759: improper end-of-file marker handling after a lone CR can cause Text::CSV_XS to inject an unexpected 0xFF byte (bsc#1286128).
Record
SUSE-SU-2026:5120-1
Updated
2026-11-06

Affected packages

Affected packages
PackageAffectedFixed
perl-Text-CSV_XS
Azure Linux:3
through 1.60-1 None known
libtext-csv-xs-perl
Debian:12
All versions, plus listed versions
1.49-11.49-1+deb12u11.50-11.51-11.52-1
Show 11 moreShow less
1.53-11.54-11.55-11.56-11.57-11.59-11.60-11.61-11.62-11.64-11.65-1
None known
libtext-csv-xs-perl
Debian:13
All versions, plus listed versions
1.60-11.60-1+deb13u11.61-11.62-11.64-11.65-1
None known
libtext-csv-xs-perl
Debian:14
before 1.65-1, plus listed versions
1.60-11.61-11.62-11.64-1
1.65-1
perl-Text-CSV_XS
Mageia:10
From an advisory covering 8 CVEs
before 1.650.0-1.mga10
1.650.0-1.mga10
perl-Text-CSV_XS
SUSE:Linux Enterprise Module for Development Tools 15 SP7
From an advisory covering 7 CVEs
before 1.34-150000.3.6.1
1.34-150000.3.6.1
perl-Text-CSV_XS
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
From an advisory covering 7 CVEs
before 1.34-150000.3.6.1
1.34-150000.3.6.1
perl-Text-CSV_XS
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
From an advisory covering 7 CVEs
before 1.34-150000.3.6.1
1.34-150000.3.6.1
perl-Text-CSV_XS
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
From an advisory covering 7 CVEs
before 1.34-150000.3.6.1
1.34-150000.3.6.1
perl-Text-CSV_XS
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
From an advisory covering 7 CVEs
before 1.34-150000.3.6.1
1.34-150000.3.6.1
Show 14 moreShow less
Affected packages
PackageAffectedFixed
perl-Text-CSV_XS
SUSE:Linux Enterprise Server 15 SP4-LTSS
From an advisory covering 7 CVEs
before 1.34-150000.3.6.1
1.34-150000.3.6.1
perl-Text-CSV_XS
SUSE:Linux Enterprise Server 15 SP5-LTSS
From an advisory covering 7 CVEs
before 1.34-150000.3.6.1
1.34-150000.3.6.1
perl-Text-CSV_XS
SUSE:Linux Enterprise Server 15 SP6-LTSS
From an advisory covering 7 CVEs
before 1.34-150000.3.6.1
1.34-150000.3.6.1
perl-Text-CSV_XS
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
From an advisory covering 7 CVEs
before 1.34-150000.3.6.1
1.34-150000.3.6.1
perl-Text-CSV_XS
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
From an advisory covering 7 CVEs
before 1.34-150000.3.6.1
1.34-150000.3.6.1
perl-Text-CSV_XS
SUSE:Linux Enterprise Server for SAP Applications 15 SP6
From an advisory covering 7 CVEs
before 1.34-150000.3.6.1
1.34-150000.3.6.1
libtext-csv-xs-perl
Ubuntu:16.04:LTS
All versions, plus listed versions
1.19-11.20-11.20-1build11.21-1
None known
libtext-csv-xs-perl
Ubuntu:18.04:LTS
All versions, plus listed versions
1.26-1build11.34-1
None known
libtext-csv-xs-perl
Ubuntu:20.04:LTS
All versions, plus listed versions
1.39-11.39-1build11.40-11.41-1
None known
libtext-csv-xs-perl
Ubuntu:22.04:LTS
All versions, plus listed versions
1.45-11.46-11.47-11.47-1build1
None known
libtext-csv-xs-perl
Ubuntu:24.04:LTS
All versions, plus listed versions
1.51-11.52-11.53-11.53-1build11.53-1build21.53-1build3
None known
libtext-csv-xs-perl
Ubuntu:26.10
All versions, plus listed versions
1.61-11.62-11.64-11.64-1build1
None known
libtext-csv-xs-perl
Ubuntu:26.04:LTS
All versions, plus listed versions
1.60-11.61-1
None known
perl-Text-CSV_XS
openSUSE:Tumbleweed
From an advisory covering 8 CVEs
before 1.650.0-1.1
1.650.0-1.1

History

History
RecordedChangedSources
affected, aliases, referencesOSV
affected
factsOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-110752 is a high vulnerability (CVSS 7.5) in perl-Text-CSV_XS, published October 16, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. Fixed in libtext-csv-xs-perl 1.65-1.

References

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