diff --git a/packages/glob/__tests__/internal-pattern.test.ts b/packages/glob/__tests__/internal-pattern.test.ts
index 3690ecb3b3..2f101d9fba 100644
--- a/packages/glob/__tests__/internal-pattern.test.ts
+++ b/packages/glob/__tests__/internal-pattern.test.ts
@@ -303,7 +303,7 @@ describe('pattern', () => {
     expect(pattern.match(`${root}foo/bar/baz`)).toBeFalsy()
     pattern = new Pattern(`${root}foo/b[!]r/b*`)
     expect(pattern.searchPath).toBe(`${root}foo${path.sep}b!r`)
-    expect(pattern.match(`${root}foo/b!r/baz`)).toBeTruthy()
+    expect(pattern.match(`${root}foo/b!r/baz`)).toBeFalsy()
     pattern = new Pattern(`${root}foo/b[[]ar/b*`)
     expect(pattern.searchPath).toBe(`${root}foo${path.sep}b[ar`)
     expect(pattern.match(`${root}foo/b[ar/baz`)).toBeTruthy()
@@ -340,9 +340,18 @@ describe('pattern', () => {
       pattern = new Pattern('C:/foo/b\\[a]r/b*')
       expect(pattern.searchPath).toBe(`C:\\foo\\b\\ar`)
       expect(pattern.match('C:/foo/b/ar/baz')).toBeTruthy()
+
+      // Regression testing for minimatch v3
+      // Historically, minimatch/glob had a bug when parsing a character class
+      // containing an escaped '!' (e.g. `[\\!]`). In some cases, the internal
+      // pattern construction would incorrectly insert the literal string
+      // "undefined" into the generated pattern/segment, which could make a
+      // pattern intended to match `b[\\!]r` also match a path segment like
+      // `b[undefined/!]r`. This test ensures that a pattern with a literal
+      // `[\\!]` in the directory name does *not* match such malformed paths.
       pattern = new Pattern('C:/foo/b[\\!]r/b*')
       expect(pattern.searchPath).toBe('C:\\foo\\b[\\!]r')
-      expect(pattern.match('C:/foo/b[undefined/!]r/baz')).toBeTruthy() // Note, "undefined" substr to accommodate a bug in Minimatch when nocase=true
+      expect(pattern.match('C:/foo/b[undefined/!]r/baz')).toBeFalsy()
     }
   })
 })
diff --git a/packages/glob/package-lock.json b/packages/glob/package-lock.json
index 35920049b2..50cbc17cab 100644
--- a/packages/glob/package-lock.json
+++ b/packages/glob/package-lock.json
@@ -10,7 +10,7 @@
       "license": "MIT",
       "dependencies": {
         "@actions/core": "^3.0.0",
-        "minimatch": "^3.0.4"
+        "minimatch": "^10.2.4"
       }
     },
     "node_modules/@actions/core": {
@@ -49,37 +49,39 @@
       "license": "MIT"
     },
     "node_modules/balanced-match": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
-      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
-      "license": "MIT"
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-4.0.4.tgz",
+      "integrity": "sha512-BLrgEcRTwX2o6gGxGOCNyMvGSp35YofuYzw9h1IMTRmKqttAZZVU67bdb9Pr2vUHA8+j3i2tJfjO6C6+4myGTA==",
+      "license": "MIT",
+      "engines": {
+        "node": "18 || 20 || >=22"
+      }
     },
     "node_modules/brace-expansion": {
-      "version": "1.1.12",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
-      "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==",
+      "version": "5.0.4",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-5.0.4.tgz",
+      "integrity": "sha512-h+DEnpVvxmfVefa4jFbCf5HdH5YMDXRsmKflpf1pILZWRFlTbJpxeU55nJl4Smt5HQaGzg1o6RHFPJaOqnmBDg==",
       "license": "MIT",
       "dependencies": {
-        "balanced-match": "^1.0.0",
-        "concat-map": "0.0.1"
+        "balanced-match": "^4.0.2"
+      },
+      "engines": {
+        "node": "18 || 20 || >=22"
       }
     },
-    "node_modules/concat-map": {
-      "version": "0.0.1",
-      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==",
-      "license": "MIT"
-    },
     "node_modules/minimatch": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
-      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
-      "license": "ISC",
+      "version": "10.2.4",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-10.2.4.tgz",
+      "integrity": "sha512-oRjTw/97aTBN0RHbYCdtF1MQfvusSIBQM0IZEgzl6426+8jSC0nF1a/GmnVLpfB9yyr6g6FTqWqiZVbxrtaCIg==",
+      "license": "BlueOak-1.0.0",
       "dependencies": {
-        "brace-expansion": "^1.1.7"
+        "brace-expansion": "^5.0.2"
       },
       "engines": {
-        "node": "*"
+        "node": "18 || 20 || >=22"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
       }
     },
     "node_modules/tunnel": {
diff --git a/packages/glob/package.json b/packages/glob/package.json
index 81b58f8f46..b40834b7a6 100644
--- a/packages/glob/package.json
+++ b/packages/glob/package.json
@@ -45,6 +45,6 @@
   },
   "dependencies": {
     "@actions/core": "^3.0.0",
-    "minimatch": "^3.0.4"
+    "minimatch": "^10.2.4"
   }
 }
diff --git a/packages/glob/src/internal-pattern.ts b/packages/glob/src/internal-pattern.ts
index 61ee380473..f6fb740b4d 100644
--- a/packages/glob/src/internal-pattern.ts
+++ b/packages/glob/src/internal-pattern.ts
@@ -2,14 +2,10 @@ import * as os from 'os'
 import * as path from 'path'
 import * as pathHelper from './internal-path-helper.js'
 import assert from 'assert'
-import minimatch from 'minimatch'
+import {Minimatch, type MinimatchOptions} from 'minimatch'
 import {MatchKind} from './internal-match-kind.js'
 import {Path} from './internal-path.js'
 
-type IMinimatch = minimatch.IMinimatch
-type IMinimatchOptions = minimatch.IOptions
-const {Minimatch} = minimatch
-
 const IS_WINDOWS = process.platform === 'win32'
 
 export class Pattern {
@@ -38,7 +34,7 @@ export class Pattern {
   /**
    * The Minimatch object used for matching
    */
-  private readonly minimatch: IMinimatch
+  private readonly minimatch: Minimatch
 
   /**
    * Used to workaround a limitation with Minimatch when determining a partial
@@ -126,7 +122,7 @@ export class Pattern {
     this.isImplicitPattern = isImplicitPattern
 
     // Create minimatch
-    const minimatchOptions: IMinimatchOptions = {
+    const minimatchOptions: MinimatchOptions = {
       dot: true,
       nobrace: true,
       nocase: IS_WINDOWS,