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.
CVE-2026-67320
axios before 0.33.0 Prototype Pollution via Node HTTP adapter
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
N L P N N H L N 8.3 .0052 42.3 —
AFFECTED
Product Versions Fixed
axios 0.31.1 – 0.33.0
axios 1.15.2 – 1.18.0
TIMELINE
Jul 29 Reserved by VulnCheck
Aug 1 Published (CNA: VulnCheck)
Sep 1 EXPLOIT PUBLISHED — CVE-2026-67320 (axios). Public exploit reference added.
Description
axios in a Node.js deployment using the HTTP adapter can route requests through an attacker-controlled proxy. axios hardens merged request configuration by creating a null-prototype object, but request interceptors run after the merge; a common immutable interceptor pattern such as {...config} or Object.assign({}, config) converts the hardened config back into a regular object. axios then dispatches that object without re-hardening it, and the Node HTTP adapter reads config.proxy through the prototype chain. If an attacker can pollute Object.prototype.proxy, affected requests can be routed through an attacker-controlled proxy. For plaintext HTTP requests, the proxy can observe Authorization headers, Basic auth from config.auth, method, absolute URL, Host, and request body, and can return its own response. This does not establish browser impact or HTTPS header/body disclosure under normal TLS validation. Affected versions are >=0.31.1 (fixed in 0.33.0) and >=1.15.2 (fixed in 1.18.0).
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| July 29, 2026 | Reserved | Reserved by VulnCheck |
| August 1, 2026 | Published | Published (CNA: VulnCheck) |
| September 1, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-67320 (axios). Public exploit reference added. |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| axios | axios | — | 0.31.1 | 0.33.0 |
| axios | axios | — | 1.15.2 | 1.18.0 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-67320 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.