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CVE-2026-8594— Text::LineFold versions through 2019.001 for Perl duplicate the output based on the number of special break characters

Quick assessment

Affected
NEZUMI Text::LineFold
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Text::LineFold是NEZUMI个人开发者的一个Perl文本处理模块。 Text::LineFold 2019.001及之前版本存在安全漏洞，该漏洞源于基于特殊换行符数量重复输出，可能导致意外资源消耗和拒绝服务。

AI Predicted 5.3 Difficulty: Easy EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 1

VendorProduct Version RangeStatus
NEZUMI Text::LineFold ≤ 2019.001 affected
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I. Basic Information for CVE-2026-8594

Vulnerability Information
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Vulnerability Title
Text::LineFold versions through 2019.001 for Perl duplicate the output based on the number of special break characters
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不对称的资源消耗(放大攻击)
Source: CVE Program / CVE List V5
Vulnerability Title
Text::LineFold 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Text::LineFold是NEZUMI个人开发者的一个Perl文本处理模块。 Text::LineFold 2019.001及之前版本存在安全漏洞，该漏洞源于基于特殊换行符数量重复输出，可能导致意外资源消耗和拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NEZUMI Text::LineFold 0 ~ 2019.001 -

II. Public POCs for CVE-2026-8594

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III. Intelligence Information for CVE-2026-8594

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Patches & Fixes for CVE-2026-8594 (2)

Other References for CVE-2026-8594 (1)

IV. Related Vulnerabilities

Same weakness: CWE-405

V. Comments for CVE-2026-8594

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