EUVD-2026-25602
GHSA-vf2m-468p-8v99
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Primary rating from GitHub Advisory.
CVSS VectorGitHub Advisory
Lifecycle Timeline
6Blast Radius
ecosystem impact- 273 npm packages depend on axios (189 direct, 84 indirect)
Ecosystem-wide dependent count for version 1.0.0.
DescriptionGitHub Advisory
Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, when responseType: 'stream' is used, Axios returns the response stream without enforcing maxContentLength. This bypasses configured response-size limits and allows unbounded downstream consumption. This vulnerability is fixed in 1.15.1 and 0.31.1.
AnalysisAI
Axios HTTP client prior to version 1.15.1 (1.x branch) and 0.31.1 (0.x branch) fails to enforce maxContentLength limits when responseType is set to 'stream', allowing attackers to cause denial of service by streaming unbounded response payloads that bypass configured size restrictions. The vulnerability affects both browser and Node.js environments and requires no authentication or user interaction to exploit.
Technical ContextAI
Axios is a promise-based HTTP client library that provides a maxContentLength configuration option intended to limit the size of HTTP responses. When responseType is configured as 'stream', Axios returns the underlying HTTP response stream object directly to the caller. The vulnerability stems from CWE-770 (Allocation of Resources Without Limits or Throttling) - the stream response path does not validate response size against the maxContentLength setting before returning the stream, allowing consuming code to receive unbounded data. This affects both browser XMLHttpRequest-based streams and Node.js stream implementations. The CPE indicates all Axios versions before the fix are vulnerable.
RemediationAI
Upgrade to Axios 1.15.1 or later for the 1.x branch, or to 0.31.1 or later for the 0.x branch. These versions restore maxContentLength enforcement for stream responses. If immediate upgrade is not feasible, implement application-level stream consumption limits by wrapping the Axios stream response with a bytes-read counter and abort the stream if cumulative bytes exceed your configured maxContentLength threshold. Alternatively, avoid using responseType: 'stream' unless absolutely required; use the default response type which respects maxContentLength. This workaround has the trade-off of loading entire responses into memory before returning them, increasing memory footprint. See GitHub security advisory GHSA-vf2m-468p-8v99 for additional context.
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