CPANSA-Text-CSV_XS-2026-110757: Text-CSV_XS vulnerability
| Publisher | giterlizzi | Document category | csaf_security_advisory |
|---|---|---|---|
| Initial release date | 2026-10-16T00:00:00 | Engine | CSAF Perl Toolkit 0.26 |
| Current release date | 2026-10-16T00:00:00 | Build Date | |
| Current version | 1 | Status | final |
| CVSS v3.1 Base Score | 9.8 | Severity | |
| Original language | Language | en | |
| Also referred to | |||
Vulnerability Description
Text::CSV_XS versions before 1.65 for Perl allow record splitting by writing strings used as numbers without quotes in combine.
combine and print do not check whether a field needs quotes when its value has Perl's integer or numeric flag set. Perl sets these flags on a string used in a numeric operation when it parses as a number, which allows leading and trailing whitespace. With binary set, as csv does by default, "12\n" passes a check such as $qty > 0 and is then written unquoted with its newline.
A value validated as a number can end the record early and turn the fields after it into a separate row.
Vulnerabilities
CVE-2026-110757
Vulnerability DescriptionText::CSV_XS versions before 1.65 for Perl allow record splitting by writing strings used as numbers without quotes in combine.
combine and print do not check whether a field needs quotes when its value has Perl's integer or numeric flag set. Perl sets these flags on a string used in a numeric operation when it parses as a number, which allows leading and trailing whitespace. With binary set, as csv does by default, "12\n" passes a check such as $qty > 0 and is then written unquoted with its newline.
A value validated as a number can end the record early and turn the fields after it into a separate row.
| Weakness | CWE-116 : Improper Encoding or Escaping of Output |
|---|
Product status
Known affected
| Product | Score | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Text-CSV_XS less than 1.65 |
|
Fixed
- Text-CSV_XS greater than or equal 1.65
giterlizzi
Namespace: https://github.com/giterlizzi/
gdt@cpan.org
References
- CPANSA-Text-CSV_XS-2026-110757 JSON self
https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-text-csv_xs-2026-110757.json - https://github.com/cpan-authors/Text-CSV_XS/commit/fcfb796cb50de9cef8b94a70535304ac41a50c56.patch external
https://github.com/cpan-authors/Text-CSV_XS/commit/fcfb796cb50de9cef8b94a70535304ac41a50c56.patch - https://metacpan.org/release/HMBRAND/Text-CSV_XS-1.65/changes external
https://metacpan.org/release/HMBRAND/Text-CSV_XS-1.65/changes - CVE-2026-110757 (NVD) external
https://nvd.nist.gov/vuln/detail/CVE-2026-110757
Revision history
| Version | Date of the revision | Summary of the revision |
|---|---|---|
| 1 | Fri Oct 16 00:00:00 2026 | First release |
Sharing rules
TLP:WHITE
For the TLP version see: https://www.first.org/tlp/