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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

EPSS 0.05% · P17
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I. Basic Information for CVE-2026-45191

Vulnerability Information
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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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1289
Source: NVD (National Vulnerability Database)

Affected Products

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

II. Public POCs for CVE-2026-45191

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III. Intelligence Information for CVE-2026-45191

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IV. Related Vulnerabilities

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

V. Comments for CVE-2026-45191

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