{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-45191 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-45191 is a medium-severity vulnerability in STIGTSP Net::CIDR::Lite, published on 10 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-45191 and fix it if it is affected.\n\nWhat it is: CVE-2026-45191 is a medium-severity vulnerability in STIGTSP Net::CIDR::Lite, published on 10 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-45191 in the wild and no public exploit code.\n\nAffected product: STIGTSP Net::CIDR::Lite. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-45191/ (Markdown: https://insights.sbomify.com/CVE-2026-45191/index.md)","id":"CVE-2026-45191","markdown":"https://insights.sbomify.com/CVE-2026-45191/index.md","name":"CVE-2026-45191","record":{"aliases":["ALPINE-CVE-2026-45191","AZL-86417","DEBIAN-CVE-2026-45191","GHSA-fw62-67j2-4wmc","UBUNTU-CVE-2026-45191"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Perl CIDR library","requires_auth":"none","summary":"Attackers can bypass IP access controls by using padded CIDR masks, affecting applications relying on Net::CIDR::Lite for network filtering.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CPANSec","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-1289","name":"Improper Validation of Unsafe Equivalence in Input"}],"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.\n\nMask forms like \"/00\" and \"/01\" pass validation and parse to the same prefix as their unpadded value.\n\nSee also CVE-2026-45190.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Security feature bypass in Net::CIDR::Lite","id":"CVE-2026-45191","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Apache Airflow: Incomplete Redaction of Sensitive Fields in Connection Extra API Response","id":"CVE-2026-45192"},"packages":[],"prev":{"headline":"Security feature bypass in Net::CIDR::Lite","id":"CVE-2026-45190"},"products":["Net::CIDR::Lite"],"published":"2026-05-10","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-11","vendors":["STIGTSP"]},"summary":"Attackers can bypass IP access controls by using padded CIDR masks, affecting applications relying on Net::CIDR::Lite for network filtering.","url":"https://insights.sbomify.com/CVE-2026-45191/"}