CVE-2026-42044

node-axios: Axios is a promise based HTTP client for the browser and Node.js

CVE-2026-42044 is fixed in node-axios on 1 platform, first by node-axios 1.13.2+dfsg-1ubuntu0.1~esm1, released May 7, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent
CVSS
9.1
critical
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0062
49th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
node-axios · Debian 14 1.15.2-1 DEBIAN-CVE-2026-42044 May 15, 2026
node-axios · Ubuntu 26.04.1 LTS (resolute) 1.13.2+dfsg-1ubuntu0.1~esm1 node-axios 1.13.2+dfsg-1ubuntu0.1~esm1 May 7, 2026

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