Answer in brief
CVE-2026-42039 records a High severity (CVSS 7.5) vulnerability in Axios: unbounded recursion in toFormData causes DoS via deeply nested request data. The current sources do not mark it as known exploited. The current feed maps axios/axios (generic), axios (npm), axios (npm). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps axios/axios (generic), axios (npm), axios (npm). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| axios/axiosgeneric | >= 1.0.0, < 1.15.1 || < 0.31.1 | Not reported |
| axiosnpm | >=1.0.0,<1.15.1 | 1.15.1 |
| axiosnpm | <=0.31.0 | 0.31.1 |
Published upstream
Apr 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 11, 2026
Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, toFormData recursively walks nested objects with no depth limit, so a deeply nested value passed as request data crashes the Node.js process with a RangeError. This vulnerability is fixed in 1.15.1 and 0.31.1.
Quoted source text, attributed separately from HOL analysis.