CVE-2026-101906High· 8.2▾ MidnightPoC availableAxios 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…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 45.1 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Sep 29.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Exploit / PoC code exists
0.4%
Last analysed / modified upstream
0.4% → 0.5%
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_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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
axios >= 1.15.0, < 1.20.0Patched in:
axios 1.20.0Source: https://github.com/advisories/GHSA-mghh-pgcx-3jjj
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-101903High· 8.2Axios is a promise-based HTTP client for the browser and Node.js
CVE-2026-101901High· 8.2Axios is a promise-based HTTP client for the browser and Node.js
CVE-2026-101909High· 8.3Axios is a promise-based HTTP client for the browser and Node.js
CVE-2026-101907High· 7.0Axios is a promise-based HTTP client for the browser and Node.js
CVE-2026-101908Medium· 6.9Axios is a promise-based HTTP client for the browser and Node.js
CVE-2026-101904Medium· 6.9Axios is a promise-based HTTP client for the browser and Node.js