diff --git a/CHANGELOG.md b/CHANGELOG.md
index 002fb3f2b1..5990573db0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ See the [releases page](https://github.com/github/codeql-action/releases) for th
 - The Git version 2.36.0 requirement for improved incremental analysis now only applies to repositories that contain submodules. [#3789](https://github.com/github/codeql-action/pull/3789)
 - Python analysis on GHES no longer extracts the standard library, relying instead on models of the standard library. This should result in significantly faster extraction and analysis times, while the effect on alerts should be minimal. [#3794](https://github.com/github/codeql-action/pull/3794)
 - Fixed a bug in the validation of OIDC configurations for private registries that was added in CodeQL Action 4.33.0 / 3.33.0. [#3807](https://github.com/github/codeql-action/pull/3807)
+- Update default CodeQL bundle version to [2.25.2](https://github.com/github/codeql-action/releases/tag/codeql-bundle-v2.25.2). [#3823](https://github.com/github/codeql-action/pull/3823)
 
 ## 4.35.1 - 27 Mar 2026
 
diff --git a/lib/analyze-action.js b/lib/analyze-action.js
index d6499da8e0..164f980e52 100644
--- a/lib/analyze-action.js
+++ b/lib/analyze-action.js
@@ -107659,8 +107659,8 @@ var path6 = __toESM(require("path"));
 var semver5 = __toESM(require_semver2());
 
 // src/defaults.json
-var bundleVersion = "codeql-bundle-v2.25.1";
-var cliVersion = "2.25.1";
+var bundleVersion = "codeql-bundle-v2.25.2";
+var cliVersion = "2.25.2";
 
 // src/overlay/index.ts
 var fs4 = __toESM(require("fs"));
diff --git a/lib/autobuild-action.js b/lib/autobuild-action.js
index 5c93699627..1b4b2fd602 100644
--- a/lib/autobuild-action.js
+++ b/lib/autobuild-action.js
@@ -104151,8 +104151,8 @@ var path5 = __toESM(require("path"));
 var semver5 = __toESM(require_semver2());
 
 // src/defaults.json
-var bundleVersion = "codeql-bundle-v2.25.1";
-var cliVersion = "2.25.1";
+var bundleVersion = "codeql-bundle-v2.25.2";
+var cliVersion = "2.25.2";
 
 // src/overlay/index.ts
 var fs3 = __toESM(require("fs"));
diff --git a/lib/defaults.json b/lib/defaults.json
index 33f577571a..cd7499eb29 100644
--- a/lib/defaults.json
+++ b/lib/defaults.json
@@ -1,6 +1,6 @@
 {
-  "bundleVersion": "codeql-bundle-v2.25.1",
-  "cliVersion": "2.25.1",
-  "priorBundleVersion": "codeql-bundle-v2.24.3",
-  "priorCliVersion": "2.24.3"
+  "bundleVersion": "codeql-bundle-v2.25.2",
+  "cliVersion": "2.25.2",
+  "priorBundleVersion": "codeql-bundle-v2.25.1",
+  "priorCliVersion": "2.25.1"
 }
diff --git a/lib/init-action-post.js b/lib/init-action-post.js
index 67451b7021..3116702f75 100644
--- a/lib/init-action-post.js
+++ b/lib/init-action-post.js
@@ -165578,8 +165578,8 @@ var path6 = __toESM(require("path"));
 var semver5 = __toESM(require_semver2());
 
 // src/defaults.json
-var bundleVersion = "codeql-bundle-v2.25.1";
-var cliVersion = "2.25.1";
+var bundleVersion = "codeql-bundle-v2.25.2";
+var cliVersion = "2.25.2";
 
 // src/overlay/index.ts
 var fs4 = __toESM(require("fs"));
diff --git a/lib/init-action.js b/lib/init-action.js
index f1634c88b4..e9c38ddd66 100644
--- a/lib/init-action.js
+++ b/lib/init-action.js
@@ -105209,8 +105209,8 @@ var path7 = __toESM(require("path"));
 var semver5 = __toESM(require_semver2());
 
 // src/defaults.json
-var bundleVersion = "codeql-bundle-v2.25.1";
-var cliVersion = "2.25.1";
+var bundleVersion = "codeql-bundle-v2.25.2";
+var cliVersion = "2.25.2";
 
 // src/overlay/index.ts
 var fs4 = __toESM(require("fs"));
diff --git a/lib/setup-codeql-action.js b/lib/setup-codeql-action.js
index 847757a256..4820171971 100644
--- a/lib/setup-codeql-action.js
+++ b/lib/setup-codeql-action.js
@@ -104002,8 +104002,8 @@ var path5 = __toESM(require("path"));
 var semver4 = __toESM(require_semver2());
 
 // src/defaults.json
-var bundleVersion = "codeql-bundle-v2.25.1";
-var cliVersion = "2.25.1";
+var bundleVersion = "codeql-bundle-v2.25.2";
+var cliVersion = "2.25.2";
 
 // src/overlay/index.ts
 var fs4 = __toESM(require("fs"));
diff --git a/lib/start-proxy-action.js b/lib/start-proxy-action.js
index 0a64ac2147..35bb3725d6 100644
--- a/lib/start-proxy-action.js
+++ b/lib/start-proxy-action.js
@@ -120977,8 +120977,8 @@ var path = __toESM(require("path"));
 var semver4 = __toESM(require_semver2());
 
 // src/defaults.json
-var bundleVersion = "codeql-bundle-v2.25.1";
-var cliVersion = "2.25.1";
+var bundleVersion = "codeql-bundle-v2.25.2";
+var cliVersion = "2.25.2";
 
 // src/git-utils.ts
 var core6 = __toESM(require_core());
@@ -121703,20 +121703,20 @@ __export(known_language_aliases_exports, {
   typescript: () => typescript
 });
 var c = "cpp";
-var c_c__ = "cpp";
-var c_cpp = "cpp";
 var c_ = "csharp";
 var c__ = "cpp";
+var c_c__ = "cpp";
+var c_cpp = "cpp";
 var java_kotlin = "java";
 var javascript_typescript = "javascript";
 var kotlin = "java";
 var typescript = "javascript";
 var known_language_aliases_default = {
   c,
-  "c-c++": c_c__,
-  "c-cpp": c_cpp,
   "c#": c_,
   "c++": c__,
+  "c-c++": c_c__,
+  "c-cpp": c_cpp,
   "java-kotlin": java_kotlin,
   "javascript-typescript": javascript_typescript,
   kotlin,
diff --git a/lib/upload-lib.js b/lib/upload-lib.js
index 7fed483bfd..504e93d1bc 100644
--- a/lib/upload-lib.js
+++ b/lib/upload-lib.js
@@ -107267,8 +107267,8 @@ var fs5 = __toESM(require("fs"));
 var semver5 = __toESM(require_semver2());
 
 // src/defaults.json
-var bundleVersion = "codeql-bundle-v2.25.1";
-var cliVersion = "2.25.1";
+var bundleVersion = "codeql-bundle-v2.25.2";
+var cliVersion = "2.25.2";
 
 // src/overlay/index.ts
 var fs4 = __toESM(require("fs"));
diff --git a/lib/upload-sarif-action.js b/lib/upload-sarif-action.js
index ae2184461f..bcb4881690 100644
--- a/lib/upload-sarif-action.js
+++ b/lib/upload-sarif-action.js
@@ -106943,8 +106943,8 @@ var path5 = __toESM(require("path"));
 var semver4 = __toESM(require_semver2());
 
 // src/defaults.json
-var bundleVersion = "codeql-bundle-v2.25.1";
-var cliVersion = "2.25.1";
+var bundleVersion = "codeql-bundle-v2.25.2";
+var cliVersion = "2.25.2";
 
 // src/overlay/index.ts
 var fs4 = __toESM(require("fs"));
diff --git a/src/defaults.json b/src/defaults.json
index 33f577571a..cd7499eb29 100644
--- a/src/defaults.json
+++ b/src/defaults.json
@@ -1,6 +1,6 @@
 {
-  "bundleVersion": "codeql-bundle-v2.25.1",
-  "cliVersion": "2.25.1",
-  "priorBundleVersion": "codeql-bundle-v2.24.3",
-  "priorCliVersion": "2.24.3"
+  "bundleVersion": "codeql-bundle-v2.25.2",
+  "cliVersion": "2.25.2",
+  "priorBundleVersion": "codeql-bundle-v2.25.1",
+  "priorCliVersion": "2.25.1"
 }
diff --git a/src/known-language-aliases.json b/src/known-language-aliases.json
index 50726256fe..7b978d8b8d 100644
--- a/src/known-language-aliases.json
+++ b/src/known-language-aliases.json
@@ -1,9 +1,9 @@
 {
   "c": "cpp",
-  "c-c++": "cpp",
-  "c-cpp": "cpp",
   "c#": "csharp",
   "c++": "cpp",
+  "c-c++": "cpp",
+  "c-cpp": "cpp",
   "java-kotlin": "java",
   "javascript-typescript": "javascript",
   "kotlin": "java",