CVE-2026-8594
MEDIUMText::LineFold versions through 2019.001 for Perl duplicate the output based on the number of special break characters
Title source: cnaDescription
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.
References (4)
Core 4
Core References
Patch patch
https://security.metacpan.org/patches/U/Unicode-LineBreak/2019.001/CVE-2026-8594-r1.patch
Issue Tracking issue-tracking
https://github.com/hatukanezumi/Unicode-LineBreak/pull/6
Scores
CVSS v3
6.2
EPSS
0.0020
EPSS Percentile
9.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-405
CWE-407
Status
published
Products (1)
NEZUMI/Text::LineFold
< 2019.001
Published
May 30, 2026
Tracked Since
May 30, 2026