CVE-2026-101904Medium· 6.9▾ TwilightPoC availableAxios is a promise-based HTTP client for the browser and Node.js. From 1.0.0 until 1.20.0, the dispatchRequest function normalizes inherited Object.prototype.headers from a replacement request configuration. A separate same-process proto…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 38 · 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
0.4%
Last analysed / modified upstream
0.4% → 0.5%
Axios is a promise-based HTTP client for the browser and Node.js. From 1.0.0 until 1.20.0, the dispatchRequest function normalizes inherited Object.prototype.headers from a replacement request configuration. A separate same-process prototype-pollution flaw sets Object.prototype.headers, and trusted request interceptors return a new ordinary configuration without an own headers property. After the interceptor chain, dispatchRequest resolves the inherited headers during normalization. Downstream request processing can observe attacker-controlled headers, including authorization-related values. 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 >= 1.0.0, < 1.20.0Patched in:
axios 1.20.0Source: https://github.com/advisories/GHSA-j8rh-479h-cp32
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-101909High· 8.3Axios is a promise-based HTTP client for the browser and Node.js
CVE-2026-101900Medium· 6.9Axios 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-2026-101905High· 7.6Axios is a promise-based HTTP client for the browser and Node.js
CVE-2026-101902Medium· 6.9Axios is a promise-based HTTP client for the browser and Node.js
CVE-2026-101906High· 8.2Axios is a promise-based HTTP client for the browser and Node.js