CVEvulnerability
CVE-2026-73413
8.7 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-08-12
- Last modified
- 2026-10-24
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 8.7 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Weaknesses
- CWE-400, CWE-407
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.
Related
References
- https://github.com/ericcornelissen/shescape/commit/43d70b59d09bbe5c3fd02ef08b3a123e977ed9de github.com
- https://github.com/ericcornelissen/shescape/commit/b4b34c394e7f9da2775bb75381066b9a228c425f github.com
- https://github.com/ericcornelissen/shescape/pull/2649 github.com
- https://github.com/ericcornelissen/shescape/pull/2651 github.com
- https://github.com/ericcornelissen/shescape/releases/tag/v2.1.14 github.com
- https://github.com/ericcornelissen/shescape/releases/tag/v3.0.1 github.com
- https://github.com/ericcornelissen/shescape/security/advisories/GHSA-gm3r-q2wp-hw87 github.com