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CVE-2026-73413

Shescape: Quadratic-time denial of service in flag-protection PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
ericcornelissen / shescapeaffected >= 2.1.11, < 2.1.14; affected >= 3.0.0, < 3.0.1

CWE

CWE-400, CWE-407

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.