Text::CSV_XS versions before 1.65 for Perl leak the parsed fields of a record that fails to parse in getline

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-110754
StatePUBLISHED
AssignerCPANSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-16 23:17:00 UTC
Updated2026-10-16 23:17:00 UTC
DescriptionText::CSV_XS versions before 1.65 for Perl leak the parsed fields of a record that fails to parse in getline. getline collects the fields of a record into a new array and returns a reference to it only when the parse succeeds. When the record has a syntax error, getline returns undef and never frees the array or the fields parsed before the error. A long-running process parsing untrusted CSV retains every malformed record it is sent, so repeated malformed input exhausts its memory.

Risk And Classification

Problem Types: CWE-401 | CWE-401 CWE-401 Missing Release of Memory after Effective Lifetime

References

ReferenceSourceLinkTags
github.com/cpan-authors/Text-CSV_XS/commit/eb4f739ffc605bfb1ab710e533070... 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com
metacpan.org/release/HMBRAND/Text-CSV_XS-1.65/changes 9b29abf9-4ab0-4765-b253-1875cd9b441e metacpan.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2026-10-14T00:00:00.000ZFix committed to upstream repository.
CNA2026-10-15T00:00:00.000ZVersion 1.65 released with fix.

Solutions

CNA: Upgrade to Text-CSV_XS 1.65 or later.

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