{"answers":{"affected":"2 open source packages ship an affected version, including ip-address.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-101912 exists.","fix":"Upgrade ip-address to 10.7.1 or later.","what":"CVE-2026-101912 is a medium-severity vulnerability in beaugunderson ip-address, published on 28 Sep 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-2026-101912 and fix it if it is affected.\n\nWhat it is: CVE-2026-101912 is a medium-severity vulnerability in beaugunderson ip-address, published on 28 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-101912 exists.\n\nAffected packages and fixed versions:\n- ip-address (npm): affected all versions; fixed in 10.7.1\n- ip-address (npm): affected all versions; fixed in 10.7.1\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-2026-101912/ (Markdown: https://insights.sbomify.com/CVE-2026-101912/index.md)","id":"CVE-2026-101912","markdown":"https://insights.sbomify.com/CVE-2026-101912/index.md","name":"CVE-2026-101912","record":{"aliases":["CLEANSTART-2026-EF09079","CLEANSTART-2026-FH34205","CLEANSTART-2026-XD91859","CLEANSTART-2026-XK88053","CLSA-2026-1790854765","CLSA-2026-1790864845","DEBIAN-CVE-2026-101912","ECHO-8502-8e2d-9fce","GHSA-j6r3-76f7-8jcv","MINI-29q3-fccr-889r","MINI-3m4v-wwm6-j97q","MINI-64pp-cj45-mhxj","MINI-6gg9-8fqr-p3qf","MINI-6pfv-xj98-5x98","MINI-7x5f-772m-mcw4","MINI-885h-7g7g-6j9j","MINI-8p8m-hgjv-f3q5","MINI-97h2-5pw2-824v","MINI-9c2x-m65r-r48v","MINI-9f47-6jwh-p2fh","MINI-9rgh-6fm6-g83w","MINI-c7mp-45mm-jmrp","MINI-f3pq-8x4r-jp88","MINI-f5qr-hwm8-39v7","MINI-f994-3ffq-cf9r","MINI-g8mf-pj2m-3h99","MINI-g9gq-66w3-hvf5","MINI-gc22-pq7f-6w9r","MINI-gv6f-7cc7-4jc8","MINI-h8fm-q4rx-jg8q","MINI-mph4-gp25-wh8m","MINI-p7p5-r3rm-p4r2","MINI-r343-gp23-5j8q","MINI-r879-prxr-gf2m","MINI-r879-v837-jgx6","MINI-rg7v-xpf9-w797","MINI-rr43-fvfg-f59f","MINI-vrh5-p628-2rqj","MINI-w3w8-3687-qgw2","MINI-wq6g-fr3p-vxx6","MINI-xcv9-xwg8-q3q6","UBUNTU-CVE-2026-101912"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript IP address library","requires_auth":"none","summary":"Attackers can bypass IP allowlists by exploiting a logic error that incorrectly matches IPv4 and IPv6 addresses, admitting unauthorized access.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-843","name":"Access of Resource Using Incompatible Type"},{"id":"CWE-697","name":"Incorrect Comparison"}],"description":"ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.7.1, the isInSubnet and isHostInSubnet methods in src/common.ts compare masked binary strings without validating that both operands use the same IP family. A cross-family containment check whose leading address bits match makes the masked strings compare equal even though IPv4 and IPv6 do not share an address space. An allowlist or denylist decision can therefore classify an address outside the intended range as contained. This issue is fixed in version 10.7.1.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"ip-address: isInSubnet() and isHostInSubnet() compare addresses of different families as if they shared an address space, allowing an allowlist check to admit an address outside its range","id":"CVE-2026-101912","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"ip-address: Address6.isLinkLocal() recognizes fe80::/64 rather than fe80::/10, allowing SSRF and trust-boundary bypass to on-link hosts","id":"CVE-2026-101913"},"packages":[{"ecosystem":"npm","fixed":["10.7.1"],"introduced":["0"],"last_affected":[],"package":"ip-address","purl":null,"source":"GHSA-j6r3-76f7-8jcv"},{"ecosystem":"npm","fixed":["10.7.1"],"introduced":["0"],"last_affected":[],"package":"ip-address","purl":"pkg:npm/ip-address","source":"GHSA-j6r3-76f7-8jcv"}],"prev":{"headline":"ip-address: Address6 builds a parse diagnostic proportional to the input with no length bound, allowing a single long string to stall or crash the process","id":"CVE-2026-101911"},"products":["ip-address"],"published":"2026-09-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-28","vendors":["beaugunderson"]},"summary":"Attackers can bypass IP allowlists by exploiting a logic error that incorrectly matches IPv4 and IPv6 addresses, admitting unauthorized access.","url":"https://insights.sbomify.com/CVE-2026-101912/"}