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Vulnerability · Published Oct 16, 2026 · Assigned by CPANSec

CVE-2026-110754Text::CSV_XS versions before 1.65 for Perl leak the parsed fields of a record that fails to parse in getline

Medium 6.5

In plain English

A medium-severity memory leak in Text-CSV_XS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.3%top 76.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Text::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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12libtext-csv-xs-perlno fix listedDEBIAN-CVE-2026-110754
Debian:13libtext-csv-xs-perlno fix listedDEBIAN-CVE-2026-110754
Debian:14libtext-csv-xs-perl1.65-1DEBIAN-CVE-2026-110754
Ubuntu:22.04:LTSlibtext-csv-xs-perlno fix listedUBUNTU-CVE-2026-110754
Ubuntu:24.04:LTSlibtext-csv-xs-perlno fix listedUBUNTU-CVE-2026-110754
Ubuntu:26.04:LTSlibtext-csv-xs-perlno fix listedUBUNTU-CVE-2026-110754
Ubuntu:26.10libtext-csv-xs-perlno fix listedUBUNTU-CVE-2026-110754

Affected products (as reported)

VendorProductVersions
Text-CSV_XS 0 – before 1.65

Weakness: CWE-401 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References