CVE-2026-73414
Command injection in Shescape on Windows CMD allows arbitrary command execution.
Is CVE-2026-73414 being exploited?
Not confirmed. CVE-2026-73414 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.52% probability of exploitation in the next 30 days.
How severe is CVE-2026-73414?
CVE-2026-73414 is rated Critical with a CVSS score of 9.2. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-73414?
Yes. A fix has been recorded for CVE-2026-73414. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-73414 affect?
CVE-2026-73414 affects Shescape < 2.1.14, Shescape < 3.0.1, Node.js apps using escape/escapeAll on Windows with shell=cmd.exe or shell=true, Windows hosts executing vulnerable Node processes. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-73414?
Upgrade Shescape to >=2.1.14 or >=3.0.1 and audit Windows CMD usages.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker-controlled argument can break out of parenthesized CMD constructs, enabling arbitrary command execution on Windows when using escape/escapeAll.
Immediate action required
- affected< 2.1.14
- affected>= 3.0.0 and < 3.0.1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.