CVE WatchAug 12, 2026

CVE-2026-73413

Shescape is a simple shell escape library for JavaScript. From 2.1.11 until 2.1.14 and 3.0.1, the flag-protection loop in compose in src/int

CVSS

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No CVSS

EPSS

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KEV

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Exploit Today

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0-100

Published: Aug 12, 2026 · Last modified: Aug 12, 2026 · CWE-400 · CWE-407

EPSS · 30d

Not enough EPSS history yet.

Technical description

Shescape is a simple shell escape library for JavaScript. From 2.1.11 until 2.1.14 and 3.0.1, the flag-protection loop in compose in src/internal/compose.js repeatedly joins and slices flag fragments when flagProtection is enabled, which is the default, making processing quadratic in input size across the escape, escapeAll, quote, and quoteAll APIs. An attacker who can supply a large untrusted input containing many flag fragments can consume CPU and cause denial of service. This issue is fixed in versions 2.1.14 and 3.0.1.

Official references

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