CVE Explorer
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.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","packageName":"Net-CIDR-Lite","product":"Net::CIDR::Lite","programFiles":["Lite.pm"],"programRoutines":[{"name":"Net::CIDR::Lite::add"}],"repo":"https://github.com/stigtsp/Net-CIDR-Lite","vendor":"STIGTSP","versions":[{"lessThan":"0.24","status":"affected","version":"0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:c7937e0bd1f3b435f764fd0859e7e51a8aa6495d35d6adfc60043750327c7b84 · sha256:faf177fc8a596f37… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:c7937e0bd1f3b435f764fd0859e7e51a8aa6495d35d6adfc60043750327c7b84 · sha256:faf177fc8a596f37… · /containers/adp/0/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-1289","description":"CWE-1289 Improper Validation of Unsafe Equivalence in Input","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:c7937e0bd1f3b435f764fd0859e7e51a8aa6495d35d6adfc60043750327c7b84 · sha256:faf177fc8a596f37… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"tags":["patch"],"url":"https://github.com/stigtsp/Net-CIDR-Lite/commit/24e2c439ec405e5256024b9acefd4f7008c5ed0c.patch"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:c7937e0bd1f3b435f764fd0859e7e51a8aa6495d35d6adfc60043750327c7b84 · sha256:faf177fc8a596f37… · /containers/cna/references/0
{"tags":["release-notes"],"url":"https://metacpan.org/release/STIGTSP/Net-CIDR-Lite-0.24/changes"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:c7937e0bd1f3b435f764fd0859e7e51a8aa6495d35d6adfc60043750327c7b84 · sha256:faf177fc8a596f37… · /containers/cna/references/1
{"tags":["related"],"url":"https://www.cve.org/CVERecord?id=CVE-2026-45190"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:c7937e0bd1f3b435f764fd0859e7e51a8aa6495d35d6adfc60043750327c7b84 · sha256:faf177fc8a596f37… · /containers/cna/references/2
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.