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CVE-2026-14895— String::Util versions before 1.36 for Perl are susceptible to a regular expression denial of service

Quick assessment

Affected
BAKERSCOT String::Util
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.

BAKERSCOT String-Util是BAKERSCOT团队的一个字符串处理工具库。 BAKERSCOT String-Util 1.36之前版本存在资源管理错误漏洞，该漏洞源于trim和rtrim函数中的正则表达式拒绝服务，由于使用s/\\s*$//u去除尾部空白导致二次回溯，CPU消耗。

AI Predicted 7.5 Difficulty: Easy EPSS 0.63% · P50

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
BAKERSCOT String::Util < 1.36 affected
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I. Basic Information for CVE-2026-14895

Vulnerability Information
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Vulnerability Title
String::Util versions before 1.36 for Perl are susceptible to a regular expression denial of service
Source: CVE Program / CVE List V5
Vulnerability Description
String::Util versions before 1.36 for Perl are susceptible to a regular expression denial of service. The trim and rtrim functions stripped trailing whitespace with s/\s*$//u. Because \s* matches greedily and the $ anchor fails whenever a non-whitespace character follows the whitespace, the regex engine retries the match at each offset of a long whitespace run, producing quadratic backtracking. The fix replaces \s*$ with \s+$. Any caller that passes untrusted input to trim or rtrim can trigger CPU exhaustion with a string containing a long run of whitespace.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
BAKERSCOT String-Util 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BAKERSCOT String-Util是BAKERSCOT团队的一个字符串处理工具库。 BAKERSCOT String-Util 1.36之前版本存在资源管理错误漏洞，该漏洞源于trim和rtrim函数中的正则表达式拒绝服务，由于使用s/\\s*$//u去除尾部空白导致二次回溯，CPU消耗。
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
BAKERSCOT String::Util 0 ~ 1.36 -

II. Public POCs for CVE-2026-14895

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III. Intelligence Information for CVE-2026-14895

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Patches & Fixes for CVE-2026-14895 (1)

Other References for CVE-2026-14895 (1)

IV. Related Vulnerabilities

Same weakness: CWE-1333

V. Comments for CVE-2026-14895

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