Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Axios: Prototype Pollution Gadgets - Response Tampering, Data Exfiltration, and Request Hijacking
AV AC PR UI S C I A CVSS EPSS %ile KEV
N H N N U H H N 7.4 .0092 59.1 —
AFFECTED
Product Versions Fixed
axios >= 1.0.0, < 1.15.1 – —
TIMELINE
Apr 23 Reserved by GitHub_M
Apr 24 Published (CNA: GitHub_M)
Aug 24 EXPLOIT PUBLISHED — CVE-2026-42033 (axios). Public exploit reference added.
Aug 25 EXPLOIT PUBLISHED — CVE-2026-42033 (axios). Public exploit reference added.
Aug 26 EXPLOIT PUBLISHED — CVE-2026-42033 (axios). Public exploit reference added.
Sep 4 EXPLOIT PUBLISHED — CVE-2026-42033 (axios). Public exploit reference added.
Sep 7 EXPLOIT PUBLISHED — CVE-2026-42033 (axios). Public exploit reference added.
Sep 9 EXPLOIT PUBLISHED — CVE-2026-42033 (axios). Public exploit reference added.
Sep 10 EXPLOIT PUBLISHED — CVE-2026-42033 (axios). Public exploit reference added.
Description
Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, when Object.prototype has been polluted by any co-dependency with keys that axios reads without a hasOwnProperty guard, an attacker can (a) silently intercept and modify every JSON response before the application sees it, or (b) fully hijack the underlying HTTP transport, gaining access to request credentials, headers, and body. The precondition is prototype pollution from a separate source in the same process. This vulnerability is fixed in 1.15.1 and 0.31.1.
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-42033 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
