STIGTSP Net::CIDR::Lite up to 0.23 on Perl improper validation of unsafe equivalence in input

Summaryinfo

A vulnerability was found in STIGTSP Net::CIDR::Lite up to 0.23 on Perl. It has been classified as problematic. The affected element is an unknown function. Performing a manipulation results in improper validation of unsafe equivalence in input. This vulnerability is reported as CVE-2026-45191. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in STIGTSP Net::CIDR::Lite up to 0.23 on Perl. This affects an unknown code block. The manipulation with an unknown input leads to a improper validation of unsafe equivalence in input vulnerability. CWE is classifying the issue as CWE-1289. The product receives an input value that is used as a resource identifier or other type of reference, but it does not validate or incorrectly validates that the input is equivalent to a potentially-unsafe value. This is going to have an impact on integrity. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-45191 since 05/10/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 314154 (Linux Distros Unpatched Vulnerability : CVE-2026-45190), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.24 eliminates this vulnerability. Applying the patch 24e2c439ec405e5256024b9acefd4f7008c5ed0c is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (314154). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• STIGTSP

Name

• Net::CIDR::Lite

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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