From c7ca89833ac46b38715ae6e6ccfe7a7721aadd40 Mon Sep 17 00:00:00 2001
From: nicblusyc <15876923+nicblusyc@user.noreply.gitee.com>
Date: Fri, 30 Oct 2026 14:05:07 +0800
Subject: [PATCH] =?UTF-8?q?fix=20=E4=BF=AE=E5=A4=8D=20DesensitizedUtils.ma?=
 =?UTF-8?q?sk=20=E6=9C=AA=E6=A0=A1=E9=AA=8C=E8=B4=9F=E6=95=B0=E5=8F=82?=
 =?UTF-8?q?=E6=95=B0=E5=AF=BC=E8=87=B4StringIndexOutOfBoundsException?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/org/dromara/common/core/utils/DesensitizedUtils.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/DesensitizedUtils.java b/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/DesensitizedUtils.java
index 8a2ffcf97..4f5656b3a 100644
--- a/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/DesensitizedUtils.java
+++ b/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/DesensitizedUtils.java
@@ -26,7 +26,9 @@ public class DesensitizedUtils extends DesensitizedUtil {
         if (StrUtil.isBlank(value)) {
             return value;
         }
-
+        if (prefixVisible < 0 || suffixVisible < 0 || maskLength < 0) {
+            throw new IllegalArgumentException("脱敏参数不能为负数");
+        }
         int len = value.length();
         int prefixMaskLimit = prefixVisible + maskLength;
         int fullLimit = prefixMaskLimit + suffixVisible;