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. Mask forms like "/00" and "/01" pass validation and parse to the same prefix as their unpadded value. See also CVE-2026-45190.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/stigtsp/Net-CIDR-Lite/commit/24e2c439ec405e5256024b9acefd4f7008c5ed0c.patch
https://metacpan.org/release/STIGTSP/Net-CIDR-Lite-0.24/changes
https://www.cve.org/CVERecord?id=CVE-2026-45190

Configurations

No configuration.

History

No history.

Information

Published : 2026-05-10 21:16

Updated : 2026-07-24 13:10

NVD link : CVE-2026-45191

Mitre link : CVE-2026-45191

CVE.ORG link : CVE-2026-45191

JSON object : View

Products Affected

No product.

CWE

CWE-1289

Improper Validation of Unsafe Equivalence in Input

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