CVE-2026-101900

Axios is a promise-based HTTP client for the browser and Node.js. From 1.12.0 until 1.20.0, ResolveConfig reads inherited Symbol.toStringTag, append, and getHeaders properties while resolving FormData headers. A separate same-process prototype-pollution flaw supplies an array or non-plain class instance whose inherited properties make it appear FormData-like; plain objects are blocked. The inherited getHeaders function can return attacker-controlled headers that resolveConfig merges into a fetch adapter request. Attacker-controlled headers can alter authorization, cache, metadata-service, or application-specific request behavior. This issue is fixed in version 1.20.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/axios/axios/commit/d19040bda7a8be2f82c3c6e1a5bc03917daee39a
https://github.com/axios/axios/pull/11141
https://github.com/axios/axios/releases/tag/v1.20.0
https://github.com/axios/axios/security/advisories/GHSA-4hqw-qxg8-jxx2
https://github.com/axios/axios/security/advisories/GHSA-4hqw-qxg8-jxx2

Configurations

No configuration.

History

28 Sep 2026, 18:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-28 18:17

Updated : 2026-09-30 19:38

NVD link : CVE-2026-101900

Mitre link : CVE-2026-101900

CVE.ORG link : CVE-2026-101900

JSON object : View

Products Affected

No product.

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-693

Protection Mechanism Failure

CWE-1321

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

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