CVE-2026-42044
- Source
- https://cve.org/CVERecord?id=CVE-2026-42044
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-42044.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-42044
- Aliases
- Downstream
- Related
- Published
- 2026-04-24T17:49:49.517Z
- Modified
- 2026-05-18T06:00:10.211132715Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N CVSS Calculator
- Summary
- Axios: Invisible JSON Response Tampering via Prototype Pollution Gadget in `parseReviver`
- Details
-
Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.15.2, he Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into surgical, invisible modification of all JSON API responses — including privilege escalation, balance manipulation, and authorization bypass. The default transformResponse function at lib/defaults/index.js:124 calls JSON.parse(data, this.parseReviver), where this is the merged config object. Because parseReviver is not present in Axios defaults, not validated by assertOptions, and not subject to any constraints, a polluted Object.prototype.parseReviver function is called for every key-value pair in every JSON response, allowing the attacker to selectively modify individual values while leaving the rest of the response intact. This vulnerability is fixed in 1.15.2.
- Database specific
{ "cwe_ids": [ "CWE-1321", "CWE-915" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42044.json", "cna_assigner": "GitHub_M" }- References