Medium severity · published Apr 24, 2026
CVE-2026-42034
Axios: HTTP adapter streamed uploads bypass maxBodyLength when maxRedirects: 0
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, for stream request bodies, maxBodyLength is bypassed when maxRedirects is set to 0 (native http/https transport path). Oversized streamed uploads are sent fully even when the caller sets strict body limits. This vulnerability is fixed in 1.15.1 and 0.31.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AX
axios · axios
>= 1.0.0, < 1.15.1; < 0.31.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-42034
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-42034
Exploit
https://github.com/axios/axios/security/advisories/GHSA-5c9x-8gcm-mpgx
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