Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N N U N L H 8.2 .0029 21.3 —
AFFECTED Product Versions Fixed axios >= 1.0.0, < 1.16.0 – —
TIMELINE May 6 Reserved by GitHub_M Jun 11 EXPLOIT PUBLISHED — CVE-2026-44490 (axios). Public exploit reference added. Jun 11 Published (CNA: GitHub_M)
Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, axios exposes two read-side prototype-pollution gadgets. When Object.prototype is polluted by an upstream dependency in the same process (e.g. lodash _.merge / CVE-2018-16487), axios silently picks up the polluted values. (1) lib/utils.js line 406 builds merge()'s accumulator as result = {}, so result[targetKey] (line 414) walks Object.prototype and the polluted bucket's own keys are copied into the merged headers and ride out on the wire. (2) lib/core/mergeConfig.js line 26 builds the hasOwnProperty descriptor as a plain-object literal. Object.defineProperty reads descriptor.get/descriptor.set via the prototype chain, so a polluted Object.prototype.get or Object.prototype.set makes the call throw TypeError synchronously on every axios request. This vulnerability is fixed in 0.32.0 and 1.16.0.
| Date | Event | Detail |
|---|---|---|
| May 6, 2026 | Reserved | Reserved by GitHub_M |
| June 11, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-44490 (axios). Public exploit reference added. |
| June 11, 2026 | Published | Published (CNA: GitHub_M) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| axios | axios | — | >= 1.0.0, < 1.16.0 | — |
Authoritative record: CVE-2026-44490 at cve.org
Vendors: axios
Weaknesses: CWE-1321
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-44490 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 Wednesday, August 19, 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.