Vulnerability 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.
Related Weaknesses (CWE)
References
- https://github.com/ericcornelissen/shescape/commit/43d70b59d09bbe5c3fd02ef08b3a1
- https://github.com/ericcornelissen/shescape/commit/b4b34c394e7f9da2775bb75381066
- https://github.com/ericcornelissen/shescape/pull/2649
- https://github.com/ericcornelissen/shescape/pull/2651
- https://github.com/ericcornelissen/shescape/releases/tag/v2.1.14
- https://github.com/ericcornelissen/shescape/releases/tag/v3.0.1
- https://github.com/ericcornelissen/shescape/security/advisories/GHSA-w4hw-qcx7-5
FAQ
What is CVE-2026-73414?
CVE-2026-73414 is a documented vulnerability. 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 escape...
How severe is CVE-2026-73414?
CVSS scoring is not yet available for CVE-2026-73414. Check NVD for updates.
Is there a patch for CVE-2026-73414?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.