CVE-2026-110757 HMBRAND CVE debrief

Who should care

Defenders responsible for Perl applications using Text::CSV_XS should assess the vulnerability and take necessary actions to mitigate the issue. This includes verifying the version in use, assessing input data for potential exploitation, and implementing additional validation and sanitization if needed. Operators of platforms using Text::CSV_XS, vulnerability management teams, and security teams should prioritize verifying the version and assessing the

Why it matters

CVE-2026-110757 is a vulnerability in Text::CSV_XS that allows record splitting, potentially leading to data manipulation. Defenders should verify the version in use and assess input data for potential exploitation.

• Defenders need to verify the version of Text::CSV_XS in use and assess if input data could be used to create malicious records.
• Successful exploitation could lead to record splitting, potentially allowing attackers to manipulate data.

Technical summary

The vulnerability in Text::CSV_XS versions before 1.65 for Perl allows record splitting by writing strings used as numbers without quotes in combine. This occurs because combine and print do not check whether a field needs quotes when its value has Perl's integer or numeric flag set. As a result, a value validated as a number can end the record early and turn the fields after it into a separate row.

Defensive priority

Defenders should prioritize verifying the version of Text::CSV_XS in use and assessing if input data could be used to create malicious records.

Recommended defensive actions

• Verify the version of Text::CSV_XS in use and upgrade to version 1.65 or later if necessary.
• Assess if input data could be used to create malicious records and implement additional validation and sanitization if needed.
• Monitor for potential exploitation attempts and review system logs for suspicious activity.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further verification is needed to determine the extent of the issue and potential impact. Defenders should verify the version of Text::CSV_XS in use, assess if input data could be used to create malicious records, and implement additional validation and sanitization if needed. The lack of quotes around fields that are validated as numbers can lead to record splitting, potentially allowing attackers to manipulate data. Limited source detail is available,

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.