CVE-2026-8594

MEDIUM 6.2

Text::LineFold versions through 2019.001 for Perl duplicate the output based on the number of special break characters

CVSS Score

6.2

EPSS Score

0.0%

EPSS Percentile

0th

Text::LineFold versions through 2019.001 for Perl duplicate the output based on the number of special break characters. Text::LineFold splits the input string by specific line break characters (such as VT, FF and others) into segments, but applies the break function to the entire string, not just the segment. A side effect of this is that the full input can be duplicated for each segment. Besides being incorrect, this can lead to unexpected resource consumption and possible denial of service. Note that Text::LineFold is part of the Unicode-LineBreak distribution, which may have a higher version number than the module.

CWE	CWE-405 CWE-407
Vendor	nezumi
Product	text::linefold
Published	May 30, 2026
Last Updated	Jun 1, 2026

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Affected Versions

NEZUMI / Text::LineFold

0 ≤ 2019.001

References

NVD ↗ CVE.org ↗ EPSS Data ↗

metacpan.org: https://metacpan.org/release/NEZUMI/Unicode-LineBreak-2019.001/source/lib/Text/LineFold.pm#L407-415 security.metacpan.org: https://security.metacpan.org/patches/U/Unicode-LineBreak/2019.001/CVE-2026-8594-r1.patch github.com: https://github.com/hatukanezumi/Unicode-LineBreak/pull/6 openwall.com: http://www.openwall.com/lists/oss-security/2026/05/30/6