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CVE-2026-55254
MEDIUM(4.8)CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Risk Signal Score22/100 — NIEDRIG
- CVSS 4.8 — Mittel
- Weniger als 24 Stunden alt
Beschreibung
NCalc is a fast, lightweight expression evaluator for .NET. Prior to 6.1.1, the factorial operator implementation in src/NCalc.Core/Helpers/MathHelper.cs permits specially crafted expressions with extremely large factorial operands, causing excessive CPU consumption or a non-terminating loop due to integer overflow in the factorial calculation logic when applications evaluate untrusted expressions. This issue is fixed in version 6.1.1.
GitHub Advisories
GHSA-3w5p-95mh-gq75MEDIUM
NCalc: Denial of Service via Unbounded and Non-Terminating Factorial Evaluation
nuget/NCalc.Core→ 6.1.1
GitHub Advisory