Answer in brief
CVE-2026-73414 records a Critical severity (CVSS 9.2) vulnerability in Shescape: Shell injection via unescaped parentheses on Windows with CMD. The current sources do not mark it as known exploited. The current feed maps ericcornelissen/shescape (generic), shescape (npm), shescape (npm), shescape (npm) and additional mapped packages. 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 9.2. 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 ericcornelissen/shescape (generic), shescape (npm), shescape (npm), shescape (npm) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| ericcornelissen/shescapegeneric | < 2.1.14 || >= 3.0.0, < 3.0.1 | Not reported |
| shescapenpm | >=0 <2.1.14 | 2.1.14 |
| shescapenpm | >=3.0.0 <3.0.1 | 3.0.1 |
| shescapenpm | <2.1.14 | 2.1.14 |
| shescapenpm | >=3.0.0,<3.0.1 | 3.0.1 |
Published upstream
Aug 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 8, 2026
Shescape is a simple shell escape library for JavaScript. Prior to 2.1.14 and 3.0.1, getEscapeFunction in src/internal/win/cmd.js does not escape `(` and `)` when applications use the escape or escapeAll APIs on Windows with shell set to cmd.exe, or with shell set to true when CMD is the default. An attacker-controlled argument can break out of a parenthesized CMD construct and inject shell syntax depending on the original command, resulting in arbitrary command execution. This issue is fixed in versions 2.1.14 and 3.0.1.
Quoted source text, attributed separately from HOL analysis.