Description
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.
References
- www.cve.org/CVERecord ↗
- nvd.nist.gov/vuln/detail/CVE-2026-73414 ↗
- github.com/ericcornelissen/shescape/commit/43d70b59d09bbe5c3fd02ef08b3a123e977ed9de ↗
- github.com/ericcornelissen/shescape/commit/b4b34c394e7f9da2775bb75381066b9a228c425f ↗
- github.com/ericcornelissen/shescape/pull/2649 ↗
- github.com/ericcornelissen/shescape/pull/2651 ↗
- github.com/ericcornelissen/shescape/releases/tag/v2.1.14 ↗
- github.com/ericcornelissen/shescape/releases/tag/v3.0.1 ↗
- github.com/ericcornelissen/shescape/security/advisories/GHSA-w4hw-qcx7-56pr ↗
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This product uses the NVD API but is not endorsed or certified by the NVD. CVSS scores do not establish exploitation.