CVE-2026-73414
9.2
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| ericcornelissen | shescape | < 2.1.14 | affected |
| ericcornelissen | shescape | >= 3.0.0, < 3.0.1 | affected |
Weaknesses
- CWE-78: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
- CWE-150: CWE-150: Improper Neutralization of Escape, Meta, or Control Sequences
References
- https://github.com/ericcornelissen/shescape/security/advisories/GHSA-w4hw-qcx7-56pr
- https://github.com/ericcornelissen/shescape/pull/2649
- https://github.com/ericcornelissen/shescape/pull/2651
- https://github.com/ericcornelissen/shescape/commit/43d70b59d09bbe5c3fd02ef08b3a123e977ed9de
- https://github.com/ericcornelissen/shescape/commit/b4b34c394e7f9da2775bb75381066b9a228c425f
- https://github.com/ericcornelissen/shescape/releases/tag/v2.1.14
- https://github.com/ericcornelissen/shescape/releases/tag/v3.0.1
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