# CVE-2026-110756: libtext-csv-xs-perl: 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 pr...

CVE-2026-110756 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2026-110756, released October 20, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2026-110756
- Priority: Urgent
- CVSS: 9.8 (critical)
- EPSS: 0.0041
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 15, 2026

## Description

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.  When a record contains a UTF-8 flagged field, print holds back trailing bytes that are not valid UTF-8 at each buffer flush, so that a character split across two flushes can be completed. Nothing writes the held-back bytes after the record's final flush. A record whose last field ends in such a byte loses it, any closing quote and the line ending, while print still returns true. combine is not affected.  The next record is written onto the same line, or, when the last field was quoted, the missing closing quote makes a reader take every following record as part of that field.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libtext-csv-xs-perl Debian 14 | 1.65-1 | [DEBIAN-CVE-2026-110756](https://patchblox.com/security/data/fix/linux/debian-cve-2026-110756.md) | Oct 20, 2026 |
| Linux | perl-Text-CSV_XS Fedora 43 | 1.65-1.fc43 | [FEDORA-2026-39D5C46C12](https://patchblox.com/security/data/fix/linux/fedora-2026-39d5c46c12.md) | Nov 7, 2026 |
| Linux | perl-Text-CSV_XS amzn 2023 | 1.65-1.amzn2023.0.1 | [ALAS2023-2026-3340](https://patchblox.com/security/data/fix/linux/alas2023-2026-3340.md) | Nov 7, 2026 |
| Linux | perl-Text-CSV_XS sles 15.6 | 1.34-150000.3.6.1 | [SUSE-SU-2026:5120-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5120-1.md) | Nov 7, 2026 |
| Linux | perl-Text-CSV_XS sles 15.7 | 1.34-150000.3.6.1 | [SUSE-SU-2026:5120-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5120-1.md) | Nov 7, 2026 |
| Linux | perl-Text-CSV_XS-debuginfo Fedora 43 | 1.65-1.fc43 | [FEDORA-2026-39D5C46C12](https://patchblox.com/security/data/fix/linux/fedora-2026-39d5c46c12.md) | Nov 7, 2026 |
| Linux | perl-Text-CSV_XS-debuginfo amzn 2023 | 1.65-1.amzn2023.0.1 | [ALAS2023-2026-3340](https://patchblox.com/security/data/fix/linux/alas2023-2026-3340.md) | Nov 7, 2026 |
| Linux | perl-Text-CSV_XS-debugsource Fedora 43 | 1.65-1.fc43 | [FEDORA-2026-39D5C46C12](https://patchblox.com/security/data/fix/linux/fedora-2026-39d5c46c12.md) | Nov 7, 2026 |
| Linux | perl-Text-CSV_XS-debugsource amzn 2023 | 1.65-1.amzn2023.0.1 | [ALAS2023-2026-3340](https://patchblox.com/security/data/fix/linux/alas2023-2026-3340.md) | Nov 7, 2026 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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