diff --git a/node_modules/tar/lib/pack.js b/node_modules/tar/lib/pack.js
index 938ece8e73145..d533a068f579f 100644
--- a/node_modules/tar/lib/pack.js
+++ b/node_modules/tar/lib/pack.js
@@ -79,14 +79,26 @@ const Pack = warner(class Pack extends Minipass {
 
     this.portable = !!opt.portable
     this.zip = null
-    if (opt.gzip) {
-      if (typeof opt.gzip !== 'object') {
-        opt.gzip = {}
+
+    if (opt.gzip || opt.brotli) {
+      if (opt.gzip && opt.brotli) {
+        throw new TypeError('gzip and brotli are mutually exclusive')
       }
-      if (this.portable) {
-        opt.gzip.portable = true
+      if (opt.gzip) {
+        if (typeof opt.gzip !== 'object') {
+          opt.gzip = {}
+        }
+        if (this.portable) {
+          opt.gzip.portable = true
+        }
+        this.zip = new zlib.Gzip(opt.gzip)
+      }
+      if (opt.brotli) {
+        if (typeof opt.brotli !== 'object') {
+          opt.brotli = {}
+        }
+        this.zip = new zlib.BrotliCompress(opt.brotli)
       }
-      this.zip = new zlib.Gzip(opt.gzip)
       this.zip.on('data', chunk => super.write(chunk))
       this.zip.on('end', _ => super.end())
       this.zip.on('drain', _ => this[ONDRAIN]())
diff --git a/node_modules/tar/lib/parse.js b/node_modules/tar/lib/parse.js
index 4b85915cbe01e..94e53042fad56 100644
--- a/node_modules/tar/lib/parse.js
+++ b/node_modules/tar/lib/parse.js
@@ -97,6 +97,16 @@ module.exports = warner(class Parser extends EE {
     this.strict = !!opt.strict
     this.maxMetaEntrySize = opt.maxMetaEntrySize || maxMetaEntrySize
     this.filter = typeof opt.filter === 'function' ? opt.filter : noop
+    // Unlike gzip, brotli doesn't have any magic bytes to identify it
+    // Users need to explicitly tell us they're extracting a brotli file
+    // Or we infer from the file extension
+    const isTBR = (opt.file && (
+        opt.file.endsWith('.tar.br') || opt.file.endsWith('.tbr')))
+    // if it's a tbr file it MIGHT be brotli, but we don't know until
+    // we look at it and verify it's not a valid tar file.
+    this.brotli = !opt.gzip && opt.brotli !== undefined ? opt.brotli
+      : isTBR ? undefined
+      : false
 
     // have to set this so that streams are ok piping into it
     this.writable = true
@@ -347,7 +357,9 @@ module.exports = warner(class Parser extends EE {
     }
 
     // first write, might be gzipped
-    if (this[UNZIP] === null && chunk) {
+    const needSniff = this[UNZIP] === null ||
+      this.brotli === undefined && this[UNZIP] === false
+    if (needSniff && chunk) {
       if (this[BUFFER]) {
         chunk = Buffer.concat([this[BUFFER], chunk])
         this[BUFFER] = null
@@ -356,15 +368,45 @@ module.exports = warner(class Parser extends EE {
         this[BUFFER] = chunk
         return true
       }
+
+      // look for gzip header
       for (let i = 0; this[UNZIP] === null && i < gzipHeader.length; i++) {
         if (chunk[i] !== gzipHeader[i]) {
           this[UNZIP] = false
         }
       }
-      if (this[UNZIP] === null) {
+
+      const maybeBrotli = this.brotli === undefined
+      if (this[UNZIP] === false && maybeBrotli) {
+        // read the first header to see if it's a valid tar file. If so,
+        // we can safely assume that it's not actually brotli, despite the
+        // .tbr or .tar.br file extension.
+        // if we ended before getting a full chunk, yes, def brotli
+        if (chunk.length < 512) {
+          if (this[ENDED]) {
+            this.brotli = true
+          } else {
+            this[BUFFER] = chunk
+            return true
+          }
+        } else {
+          // if it's tar, it's pretty reliably not brotli, chances of
+          // that happening are astronomical.
+          try {
+            new Header(chunk.slice(0, 512))
+            this.brotli = false
+          } catch (_) {
+            this.brotli = true
+          }
+        }
+      }
+
+      if (this[UNZIP] === null || (this[UNZIP] === false && this.brotli)) {
         const ended = this[ENDED]
         this[ENDED] = false
-        this[UNZIP] = new zlib.Unzip()
+        this[UNZIP] = this[UNZIP] === null
+          ? new zlib.Unzip()
+          : new zlib.BrotliDecompress()
         this[UNZIP].on('data', chunk => this[CONSUMECHUNK](chunk))
         this[UNZIP].on('error', er => this.abort(er))
         this[UNZIP].on('end', _ => {
@@ -502,6 +544,7 @@ module.exports = warner(class Parser extends EE {
         this[UNZIP].end(chunk)
       } else {
         this[ENDED] = true
+        if (this.brotli === undefined) chunk = chunk || Buffer.alloc(0)
         this.write(chunk)
       }
     }
diff --git a/node_modules/tar/lib/replace.js b/node_modules/tar/lib/replace.js
index c6e619be6f032..8db6800bdf464 100644
--- a/node_modules/tar/lib/replace.js
+++ b/node_modules/tar/lib/replace.js
@@ -23,7 +23,7 @@ module.exports = (opt_, files, cb) => {
     throw new TypeError('file is required')
   }
 
-  if (opt.gzip) {
+  if (opt.gzip || opt.brotli || opt.file.endsWith('.br') || opt.file.endsWith('.tbr')) {
     throw new TypeError('cannot append to compressed archives')
   }
 
diff --git a/node_modules/tar/lib/update.js b/node_modules/tar/lib/update.js
index ded977dc1dec0..4d328543b315e 100644
--- a/node_modules/tar/lib/update.js
+++ b/node_modules/tar/lib/update.js
@@ -13,7 +13,7 @@ module.exports = (opt_, files, cb) => {
     throw new TypeError('file is required')
   }
 
-  if (opt.gzip) {
+  if (opt.gzip || opt.brotli || opt.file.endsWith('.br') || opt.file.endsWith('.tbr')) {
     throw new TypeError('cannot append to compressed archives')
   }
 
diff --git a/node_modules/tar/package.json b/node_modules/tar/package.json
index f59f54ae837bd..46d91ee1b299c 100644
--- a/node_modules/tar/package.json
+++ b/node_modules/tar/package.json
@@ -2,20 +2,15 @@
   "author": "GitHub Inc.",
   "name": "tar",
   "description": "tar for node",
-  "version": "6.1.15",
+  "version": "6.2.0",
   "repository": {
     "type": "git",
     "url": "https://github.com/isaacs/node-tar.git"
   },
   "scripts": {
     "genparse": "node scripts/generate-parse-fixtures.js",
-    "template-oss-apply": "template-oss-apply --force",
-    "lint": "eslint \"**/*.js\"",
-    "postlint": "template-oss-check",
-    "lintfix": "npm run lint -- --fix",
     "snap": "tap",
-    "test": "tap",
-    "posttest": "npm run lint"
+    "test": "tap"
   },
   "dependencies": {
     "chownr": "^2.0.0",
diff --git a/package-lock.json b/package-lock.json
index 83306d5680968..0a652a78e00b6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -153,7 +153,7 @@
         "ssri": "^10.0.5",
         "strip-ansi": "^6.0.1",
         "supports-color": "^9.4.0",
-        "tar": "^6.1.15",
+        "tar": "^6.2.0",
         "text-table": "~0.2.0",
         "tiny-relative-date": "^1.3.0",
         "treeverse": "^3.0.0",
@@ -15648,9 +15648,9 @@
       }
     },
     "node_modules/tar": {
-      "version": "6.1.15",
-      "resolved": "https://registry.npmjs.org/tar/-/tar-6.1.15.tgz",
-      "integrity": "sha512-/zKt9UyngnxIT/EAGYuxaMYgOIJiP81ab9ZfkILq4oNLPFX50qyYmu7jRj9qeXoxmJHjGlbH0+cm2uy1WCs10A==",
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/tar/-/tar-6.2.0.tgz",
+      "integrity": "sha512-/Wo7DcT0u5HUV486xg675HtjNd3BXZ6xDbzsCUZPt5iw8bTQ63bP0Raut3mvro9u+CUyq7YQd8Cx55fsZXxqLQ==",
       "inBundle": true,
       "dependencies": {
         "chownr": "^2.0.0",
@@ -17106,7 +17106,7 @@
         "minimatch": "^9.0.0",
         "npm-package-arg": "^11.0.1",
         "pacote": "^17.0.4",
-        "tar": "^6.1.13"
+        "tar": "^6.2.0"
       },
       "devDependencies": {
         "@npmcli/eslint-config": "^4.0.0",
diff --git a/package.json b/package.json
index 35de6c0874272..8612751859173 100644
--- a/package.json
+++ b/package.json
@@ -115,7 +115,7 @@
     "ssri": "^10.0.5",
     "strip-ansi": "^6.0.1",
     "supports-color": "^9.4.0",
-    "tar": "^6.1.15",
+    "tar": "^6.2.0",
     "text-table": "~0.2.0",
     "tiny-relative-date": "^1.3.0",
     "treeverse": "^3.0.0",
diff --git a/workspaces/libnpmdiff/package.json b/workspaces/libnpmdiff/package.json
index 321e003eb0020..8c3fe09bad764 100644
--- a/workspaces/libnpmdiff/package.json
+++ b/workspaces/libnpmdiff/package.json
@@ -54,7 +54,7 @@
     "minimatch": "^9.0.0",
     "npm-package-arg": "^11.0.1",
     "pacote": "^17.0.4",
-    "tar": "^6.1.13"
+    "tar": "^6.2.0"
   },
   "templateOSS": {
     "//@npmcli/template-oss": "This file is partially managed by @npmcli/template-oss. Edits may be overwritten.",