CVE-2026-101908Medium· 6.9▾ TwilightPoC availableAxios is a promise-based HTTP client for the browser and Node.js. From 1.7.0 until 1.20.0, the fetch adapter constructs a Request with sanitized resolvedOptions but then calls fetch with the original fetchOptions. A separate same-process…
▾ 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
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 1.7.0 until 1.20.0, the fetch adapter constructs a Request with sanitized resolvedOptions but then calls fetch with the original fetchOptions. A separate same-process prototype-pollution flaw populates Object.prototype.headers so fetchOptions.headers resolves through inheritance. The inherited fetchOptions.headers value overrides the sanitized Request headers through the second argument to fetch after Request construction. Attacker-controlled request headers can alter authorization, caching, metadata-service access, or application-specific behavior. 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 >= 1.7.0, < 1.20.0Patched in:
axios 1.20.0Source: https://github.com/advisories/GHSA-vh66-26gq-q6x8
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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CVE-2026-101905High· 7.6Axios 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-2026-101902Medium· 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