{"id":"CVE-2026-101906","title":"Axios is a promise-based HTTP client for the browser and Node.js","summary":"Axios is a promise-based HTTP client for the browser and Node.js. From 1.15.0 until 1.20.0, Axios shouldBypassProxy applies a quadratic trailing-dot regular expression to redirect hostnames. HTTP_PROXY or HTTPS_PROXY is configured, NO_PR…","severity":"high","cvss":8.2,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","cwe":["CWE-400","CWE-1333"],"vendor":"axios","product":"axios","affected":["axios >= 1.15.0, < 1.20.0"],"published":"2026-09-28","updated":"2026-09-28","sourceUpdated":"2026-09-28T18:17:19.100","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-101906","references":[{"url":"https://github.com/axios/axios/commit/d19040bda7a8be2f82c3c6e1a5bc03917daee39a","label":"security-advisories@github.com"},{"url":"https://github.com/axios/axios/pull/11141","label":"security-advisories@github.com"},{"url":"https://github.com/axios/axios/releases/tag/v1.20.0","label":"security-advisories@github.com"},{"url":"https://github.com/axios/axios/security/advisories/GHSA-mghh-pgcx-3jjj","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"cvssSource":"cna","ingestedAt":"2026-09-28T18:17:54.307Z","slug":"CVE-2026-101906","body":"## Overview\n\nAxios is a promise-based HTTP client for the browser and Node.js. From 1.15.0 until 1.20.0, Axios shouldBypassProxy applies a quadratic trailing-dot regular expression to redirect hostnames. HTTP_PROXY or HTTPS_PROXY is configured, NO_PROXY or no_proxy is non-empty, redirects are followed, and a crafted redirect Location contains many dots followed by a non-dot character. Hostname.replace(/.+$/, '') backtracks quadratically while processing the crafted redirect hostname. Synchronous regular-expression processing can block the Node.js event loop and cause denial of service. This issue is fixed in version 1.20.0.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":45.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}