CVE-2026-101900

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Source
https://cve.org/CVERecord?id=CVE-2026-101900
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-101900.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-101900
Aliases
Downstream
Published
2026-09-28T17:14:07Z
Modified
2026-09-30T03:47:03Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N CVSS Calculator
Summary
Axios: Fetch Adapter Header Injection via Inherited FormData getHeaders
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-1321",
        "CWE-693",
        "CWE-74"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101900.json"
}
References

Affected packages

Git / github.com/axios/axios

Affected ranges

Type
GIT
Repo
https://github.com/axios/axios
Events
Introduced
0d8ad6e1de0f5339e02bc262d6f0df4936974120
Fixed
d19040bda7a8be2f82c3c6e1a5bc03917daee39a
Fixed
84a9f3b9a4f3244b8c8e818f557d64c7b964fb25
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "1.12.0"
        },
        {
            "fixed":  "1.20.0"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v1.*
v1.12.0
v1.12.1
v1.12.2
v1.13.0
v1.13.1
v1.13.2
v1.13.3
v1.13.4
v1.13.5
v1.13.6
v1.14.0
v1.15.0
v1.15.1
v1.15.2
v1.16.0
v1.16.1
v1.17.0
v1.18.0
v1.18.1
v1.19.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-101900.json"