{"answers":{"affected":"2 open source packages ship an affected version, including axios.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-101899 exists.","fix":"Upgrade axios to 1.20.0 or later.","what":"CVE-2026-101899 is a medium-severity vulnerability in axios, published on 13 Oct 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-2026-101899 and fix it if it is affected.\n\nWhat it is: CVE-2026-101899 is a medium-severity vulnerability in axios, published on 13 Oct 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-2026-101899 exists.\n\nAffected packages and fixed versions:\n- axios (npm): affected from 1.15.0; fixed in 1.20.0\n- axios (npm): affected from 1.15.0; fixed in 1.20.0\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-2026-101899/ (Markdown: https://insights.sbomify.com/CVE-2026-101899/index.md)","id":"CVE-2026-101899","markdown":"https://insights.sbomify.com/CVE-2026-101899/index.md","name":"CVE-2026-101899","record":{"aliases":["CLEANSTART-2026-FC45371","CLEANSTART-2026-HE03730","CLEANSTART-2026-SK85007","DEBIAN-CVE-2026-101899","ECHO-322b-b4b4-8549","GHSA-44g4-m2mj-wpvx","MINI-33rx-8cx5-fvpf","MINI-3v36-h9jf-crvr","MINI-4r7g-h35f-34j8","MINI-57rw-xc7m-f2w3","MINI-739w-67f7-pgm4","MINI-g7mh-6qv9-hg66","MINI-hhcw-q6r5-pq9f","MINI-jwqw-rh4p-5h2q","MINI-rrr5-4j9w-56c8","MINI-vmwv-3rmm-2f52","MINI-xv7c-wjgr-c6mr","UBUNTU-CVE-2026-101899"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":true,"product_category":"JavaScript HTTP client","requires_auth":"none","summary":"Axios ignores CIDR-form NO_PROXY entries, causing internal requests to bypass intended exclusions and traverse configured proxies, exposing data to interception.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-693","name":"Protection Mechanism Failure"}],"description":"Axios is a promise-based HTTP client for the browser and Node.js. From 1.15.0 until 1.20.0, Axios shouldBypassProxy treats the NO_PROXY CIDR form as a textual hostname suffix instead of evaluating the network range. A request targets an address covered by a CIDR entry in NO_PROXY while a proxy is configured. The CIDR bypass rule is not matched, so the request is sent through the configured proxy. For plaintext HTTP, the proxy can observe and modify URLs, headers, and bodies; for HTTPS, it can observe connection metadata and CONNECT requests. This issue is fixed in version 1.20.0.","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":"Axios: CIDR-form NO_PROXY entries are ignored, causing proxy exclusion bypass for internal IP ranges","id":"CVE-2026-101899","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":2,"n_references":4,"next":{"headline":"Axios: Fetch Adapter Header Injection via Inherited FormData getHeaders","id":"CVE-2026-101900"},"packages":[{"ecosystem":"npm","fixed":["1.20.0"],"introduced":["1.15.0"],"last_affected":[],"package":"axios","purl":null,"source":"GHSA-44g4-m2mj-wpvx"},{"ecosystem":"npm","fixed":["1.20.0"],"introduced":["1.15.0"],"last_affected":[],"package":"axios","purl":"pkg:npm/axios","source":"GHSA-44g4-m2mj-wpvx"}],"prev":{"headline":"Axios: HTTP/2 adapter bypasses configured DNS lookup and proxy controls","id":"CVE-2026-101898"},"products":["axios"],"published":"2026-10-13","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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["axios"]},"summary":"Axios ignores CIDR-form NO_PROXY entries, causing internal requests to bypass intended exclusions and traverse configured proxies, exposing data to interception.","url":"https://insights.sbomify.com/CVE-2026-101899/"}