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CVE-2026-110755

CVE-2026-110755 · Text::CSV_XS versions before 1.65 for Perl allow quadratic CPU use by copying the unparsed remainder per record of CR-only input in getline

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Text::CSV_XS versions before 1.65 for Perl allow quadratic CPU use by copying the unparsed remainder per record of CR-only input in getline. With eol unset, the default, getline reads with Perl's default line separator, so input with CR-only line endings arrives as one chunk. After each record the parser copies the whole unparsed remainder into a new buffer, which the next call parses and copies again, so the work grows with the square of the input size. A reader with default options that is sent CSV with classic Mac line endings spends seconds of CPU time on a megabyte of input.

CVSS 7.5 · High · EPSS 0.3% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • libtext-csv-xs-perl Debian:12

    Versions
    • 1.49-1
    • 1.49-1+deb12u1
    • 1.50-1
    • 1.51-1
    • 1.52-1
    • 1.53-1
    • 1.54-1
    • 1.55-1
    • 1.56-1
    • 1.57-1
    • 1.59-1
    • 1.60-1
    • 1.61-1
    • 1.62-1
    • 1.64-1
    • 1.65-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libtext-csv-xs-perl Debian:13

    Versions
    • 1.60-1
    • 1.60-1+deb13u1
    • 1.61-1
    • 1.62-1
    • 1.64-1
    • 1.65-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libtext-csv-xs-perl Debian:14

    Versions
    • 1.60-1
    • 1.61-1
    • 1.62-1
    • 1.64-1
    Affected ranges
    • ECOSYSTEM: < 1.65-1

    Update to 1.65-1

  • libtext-csv-xs-perl Ubuntu:16.04:LTS

    Versions
    • 1.19-1
    • 1.20-1
    • 1.20-1build1
    • 1.21-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libtext-csv-xs-perl Ubuntu:18.04:LTS

    Versions
    • 1.26-1build1
    • 1.34-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libtext-csv-xs-perl Ubuntu:20.04:LTS

    Versions
    • 1.39-1
    • 1.39-1build1
    • 1.40-1
    • 1.41-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libtext-csv-xs-perl Ubuntu:22.04:LTS

    Versions
    • 1.45-1
    • 1.46-1
    • 1.47-1
    • 1.47-1build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libtext-csv-xs-perl Ubuntu:24.04:LTS

    Versions
    • 1.51-1
    • 1.52-1
    • 1.53-1
    • 1.53-1build1
    • 1.53-1build2
    • 1.53-1build3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libtext-csv-xs-perl Ubuntu:26.10

    Versions
    • 1.61-1
    • 1.62-1
    • 1.64-1
    • 1.64-1build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libtext-csv-xs-perl Ubuntu:26.04:LTS

    Versions
    • 1.60-1
    • 1.61-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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