Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-45191— Net::CIDR::Lite versions before 0.24 for Perl does not properly consider extraneous zero characters in CIDR mask values, which may allow IP ACL bypass

AI Predicted 8.1 Difficulty: Easy EPSS 0.30% · P23

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
STIGTSPNet::CIDR::Lite< 0.24affected
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-45191

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Net::CIDR::Lite versions before 0.24 for Perl does not properly consider extraneous zero characters in CIDR mask values, which may allow IP ACL bypass
Source: CVE Program / CVE List V5
Vulnerability Description
Net::CIDR::Lite versions before 0.24 for Perl does not properly consider extraneous zero characters in CIDR mask values, which may allow IP ACL bypass. Mask forms like "/00" and "/01" pass validation and parse to the same prefix as their unpadded value. See also CVE-2026-45190.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1289
Source: CVE Program / CVE List V5
Vulnerability Title
Net-CIDR-Lite 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Net-CIDR-Lite是Stig个人开发者的一个用于处理CIDR地址的Perl模块。 Net-CIDR-Lite 0.24之前版本存在安全漏洞，该漏洞源于未正确处理CIDR掩码值中的多余零字符，可能导致IP ACL绕过。
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

VendorProductAffected VersionsCPESubscribe
STIGTSPNet::CIDR::Lite 0 ~ 0.24 -

II. Public POCs for CVE-2026-45191

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-45191

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-45191 (1)

Vendor Advisories for CVE-2026-45191 (1)

Other References for CVE-2026-45191 (1)

IV. Related Vulnerabilities

Same product: Net::CIDR::Lite
Same vendor: STIGTSP
Same weakness: CWE-1289

V. Comments for CVE-2026-45191

No comments yet

Leave a comment