Logo
-

Byte Open Security

(ByteOS Network)

Log In

Sign Up

ByteOS

Security
Vulnerability Details
Registries
Custom Views
Weaknesses
Attack Patterns
Filters & Tools
Vulnerability Details :

CVE-2026-45190

Summary
Assigner-CPANSec
Assigner Org ID-9b29abf9-4ab0-4765-b253-1875cd9b441e
Published At-10 May, 2026 | 20:15
Updated At-10 May, 2026 | 20:15
Rejected At-
Credits

Net::CIDR::Lite versions before 0.24 for Perl does not properly validate IP address and CIDR mask inputs, which may allow IP ACL bypass

Net::CIDR::Lite versions before 0.24 for Perl does not properly validate IP address and CIDR mask inputs, which may allow IP ACL bypass. Inputs containing a trailing newline or non-ASCII digit characters pass the validators but are then re-encoded by the parser to a different address than the input string spelled. find() and bin_find() can match or miss addresses as a result. Example: my $cidr = Net::CIDR::Lite->new(); $cidr->add("::1\n/128"); $cidr->find("::1a"); # incorrectly returns true See also CVE-2026-45191.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:CPANSec
Assigner Org ID:9b29abf9-4ab0-4765-b253-1875cd9b441e
Published At:10 May, 2026 | 20:15
Updated At:10 May, 2026 | 20:15
Rejected At:
▼CVE Numbering Authority (CNA)
Net::CIDR::Lite versions before 0.24 for Perl does not properly validate IP address and CIDR mask inputs, which may allow IP ACL bypass

Net::CIDR::Lite versions before 0.24 for Perl does not properly validate IP address and CIDR mask inputs, which may allow IP ACL bypass. Inputs containing a trailing newline or non-ASCII digit characters pass the validators but are then re-encoded by the parser to a different address than the input string spelled. find() and bin_find() can match or miss addresses as a result. Example: my $cidr = Net::CIDR::Lite->new(); $cidr->add("::1\n/128"); $cidr->find("::1a"); # incorrectly returns true See also CVE-2026-45191.

Affected Products
Vendor
STIGTSP
Product
Net::CIDR::Lite
Collection URL
https://cpan.org/modules
Package Name
Net-CIDR-Lite
Repo
https://github.com/stigtsp/Net-CIDR-Lite
Program Files
  • Lite.pm
Program Routines
  • Net::CIDR::Lite::add
  • Net::CIDR::Lite::_pack_ipv4
  • Net::CIDR::Lite::_pack_ipv6
Default Status
unaffected
Versions
Affected
  • From 0 before 0.24 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-1289CWE-1289 Improper Validation of Unsafe Equivalence in Input
Type: CWE
CWE ID: CWE-1289
Description: CWE-1289 Improper Validation of Unsafe Equivalence in Input
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Upgrade to version 0.24 or newer, or apply the patch provided.

Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Vulnerability found2026-05-10 00:00:00
Net-CIDR-Lite version 0.24 released2026-05-10 00:00:00
Event: Vulnerability found
Date: 2026-05-10 00:00:00
Event: Net-CIDR-Lite version 0.24 released
Date: 2026-05-10 00:00:00
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/stigtsp/Net-CIDR-Lite/commit/ca9542adec87110556601d7ce48381ea8d13e692.patch
patch
https://metacpan.org/release/STIGTSP/Net-CIDR-Lite-0.24/changes
release-notes
https://www.cve.org/CVERecord?id=CVE-2026-45191
related
Hyperlink: https://github.com/stigtsp/Net-CIDR-Lite/commit/ca9542adec87110556601d7ce48381ea8d13e692.patch
Resource:
patch
Hyperlink: https://metacpan.org/release/STIGTSP/Net-CIDR-Lite-0.24/changes
Resource:
release-notes
Hyperlink: https://www.cve.org/CVERecord?id=CVE-2026-45191
Resource:
related
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:9b29abf9-4ab0-4765-b253-1875cd9b441e
Published At:10 May, 2026 | 21:16
Updated At:10 May, 2026 | 21:16

Net::CIDR::Lite versions before 0.24 for Perl does not properly validate IP address and CIDR mask inputs, which may allow IP ACL bypass. Inputs containing a trailing newline or non-ASCII digit characters pass the validators but are then re-encoded by the parser to a different address than the input string spelled. find() and bin_find() can match or miss addresses as a result. Example: my $cidr = Net::CIDR::Lite->new(); $cidr->add("::1\n/128"); $cidr->find("::1a"); # incorrectly returns true See also CVE-2026-45191.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-1289Secondary9b29abf9-4ab0-4765-b253-1875cd9b441e
CWE ID: CWE-1289
Type: Secondary
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/stigtsp/Net-CIDR-Lite/commit/ca9542adec87110556601d7ce48381ea8d13e692.patch9b29abf9-4ab0-4765-b253-1875cd9b441e
N/A
https://metacpan.org/release/STIGTSP/Net-CIDR-Lite-0.24/changes9b29abf9-4ab0-4765-b253-1875cd9b441e
N/A
https://www.cve.org/CVERecord?id=CVE-2026-451919b29abf9-4ab0-4765-b253-1875cd9b441e
N/A
Hyperlink: https://github.com/stigtsp/Net-CIDR-Lite/commit/ca9542adec87110556601d7ce48381ea8d13e692.patch
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Resource: N/A
Hyperlink: https://metacpan.org/release/STIGTSP/Net-CIDR-Lite-0.24/changes
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Resource: N/A
Hyperlink: https://www.cve.org/CVERecord?id=CVE-2026-45191
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

1Records found
CVE-2026-45191
Matching Score-6
Assigner-CPAN Security Group
ShareView Details
Matching Score-6
Assigner-CPAN Security Group
CVSS Score-Not Assigned
EPSS-Not Assigned
Published-10 May, 2026 | 20:15
Updated-10 May, 2026 | 21:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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

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.

Action-Not Available
Vendor-STIGTSP
Product-Net::CIDR::Lite
CWE ID-CWE-1289
Improper Validation of Unsafe Equivalence in Input
Details not found