7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2025-58754

CVE-2025-58754: Axios is vulnerable to DoS attack through lack of data size check

Axios is a promise based HTTP client for the browser and Node.js. When Axios starting in version 0.28.0 and prior to versions 0.30.2 and 1.12.0 runs on Node.js and is given a URL with the data: scheme, it does not perform HTTP. Instead, its Node http adapter decodes the entire payload into memory (Buffer/Blob) and returns a synthetic 200 response. This path ignores maxContentLength / maxBodyLength (which only protect HTTP responses), so an attacker can supply a very large data: URI and cause the process to allocate unbounded memory and crash (DoS), even if the caller requested responseType: 'stream'. Versions 0.30.2 and 1.12.0 contain a patch for the issue.

(GitHub Advisory)

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CVE-2025-58754

CVE-2025-58754:

7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
axios	npm	< 1.12.0	1.12.0

Technical Details

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Root Cause Analysis

The vulnerability is a Denial of Service (DoS) in Axios when handling data: URLs on Node.js. The root cause is the lack of input validation on the size of the payload within a data: URL. When a request is made with a malicious, oversized data: URL, the httpAdapter function in lib/adapters/http.js is invoked. In vulnerable versions, this function fails to check the payload size against the configured maxContentLength or maxBodyLength limits, as it does for standard HTTP requests. It directly calls the fromDataURI helper function. The fromDataURI function then proceeds to decode the entire Base64-encoded payload into a Buffer in memory. This single, unbounded allocation can easily exhaust the available heap space for the Node.js process, causing it to crash. The provided patch mitigates this by introducing a new helper, estimateDataURLDecodedBytes, and using it within httpAdapter to estimate the final size of the data before attempting to decode it, effectively enforcing the maxContentLength limit and preventing the dangerous memory allocation.

Vulnerable functions

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WAF Rule

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Reasoning

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