Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/hatukanezumi/Unicode-LineBreak/pull/6
- https://metacpan.org/release/NEZUMI/Unicode-LineBreak-2019.001/source/lib/Text/L
- https://security.metacpan.org/patches/U/Unicode-LineBreak/2019.001/CVE-2026-8594
- http://www.openwall.com/lists/oss-security/2026/05/30/6
FAQ
What is CVE-2026-8594?
CVE-2026-8594 is a vulnerability with a CVSS score of 6.2 (MEDIUM). 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 ...
How severe is CVE-2026-8594?
CVE-2026-8594 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-8594?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.