High severityNVD Advisory· Published Aug 12, 2026
CVE-2026-73413
CVE-2026-73413
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
shescapenpm | >= 2.1.11, < 2.1.14 | 2.1.14 |
shescapenpm | >= 3.0.0, < 3.0.1 | 3.0.1 |
Affected products
1Patches
Vulnerability mechanics
References
9- github.com/advisories/GHSA-gm3r-q2wp-hw87ghsaADVISORY
- github.com/ericcornelissen/shescape/blob/dea8893a5877893d8d4923dbf253080e08899e6d/docs/migration.mdghsaWEB
- github.com/ericcornelissen/shescape/commit/43d70b59d09bbe5c3fd02ef08b3a123e977ed9denvdWEB
- github.com/ericcornelissen/shescape/commit/b4b34c394e7f9da2775bb75381066b9a228c425fnvdWEB
- github.com/ericcornelissen/shescape/pull/2649nvdWEB
- github.com/ericcornelissen/shescape/pull/2651nvdWEB
- github.com/ericcornelissen/shescape/releases/tag/v2.1.14nvdWEB
- github.com/ericcornelissen/shescape/releases/tag/v3.0.1nvdWEB
- github.com/ericcornelissen/shescape/security/advisories/GHSA-gm3r-q2wp-hw87nvdWEB
News mentions
0No linked articles in our index yet.