diff --git a/package.json b/package.json
index b993ed09..ee0fe691 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@scality/cloudserverclient",
-  "version": "1.0.7",
+  "version": "1.0.8",
   "engines": {
     "node": ">=20"
   },
@@ -50,14 +50,17 @@
     "@typescript-eslint/parser": "^6.21.0",
     "eslint": "^9.37.0",
     "jest": "^30.2.0",
-    "ts-jest": "^29.4.4",
+    "ts-jest": "^29.4.9",
     "typescript": "^5.7.3",
     "typescript-eslint": "^8.49.0"
   },
   "dependencies": {
     "@aws-sdk/client-s3": "^3.1009.0",
     "JSONStream": "^1.3.5",
-    "fast-xml-parser": "^4.3.2"
+    "fast-xml-parser": "^4.5.5"
+  },
+  "resolutions": {
+    "flatted": "^3.4.2"
   },
   "author": "Scality",
   "license": "Apache-2.0",
diff --git a/src/clients/backbeatRoutes.ts b/src/clients/backbeatRoutes.ts
index 95089064..fa19b571 100644
--- a/src/clients/backbeatRoutes.ts
+++ b/src/clients/backbeatRoutes.ts
@@ -7,7 +7,10 @@ import { createCustomErrorMiddleware } from '../utils';
 export * from '../../build/smithy/cloudserverBackbeatRoutes/typescript-codegen';
 export class BackbeatRoutesClient extends CloudserverBackbeatRoutesClient {
     constructor(config: CloudserverBackbeatRoutesClientConfig) {
-        super(config);
+        super({
+            ...config,
+            signingEscapePath: false,
+        });
         
         this.middlewareStack.add(createCustomErrorMiddleware(), {
             step: 'deserialize',
diff --git a/src/clients/bucketQuota.ts b/src/clients/bucketQuota.ts
index 6e7af6a9..1036dc14 100644
--- a/src/clients/bucketQuota.ts
+++ b/src/clients/bucketQuota.ts
@@ -15,6 +15,9 @@ export {
 
 export class BucketQuotaClient extends CloudserverBucketQuotaClient {
     constructor(config: CloudserverBucketQuotaClientConfig) {
-        super(config);
+        super({
+            ...config,
+            signingEscapePath: false,
+        });
     }
 }
diff --git a/src/clients/proxyBackbeatApis.ts b/src/clients/proxyBackbeatApis.ts
index 2328baa8..00408c38 100644
--- a/src/clients/proxyBackbeatApis.ts
+++ b/src/clients/proxyBackbeatApis.ts
@@ -59,6 +59,9 @@ export type {
 
 export class ProxyBackbeatApisClient extends CloudserverProxyBackbeatApisClient {
     constructor(config: CloudserverProxyBackbeatApisClientConfig) {
-        super(config);
+        super({
+            ...config,
+            signingEscapePath: false,
+        });
     }
 }
diff --git a/tests/testSigningSpecialChars.test.ts b/tests/testSigningSpecialChars.test.ts
new file mode 100644
index 00000000..cc82254b
--- /dev/null
+++ b/tests/testSigningSpecialChars.test.ts
@@ -0,0 +1,66 @@
+import { PutObjectCommand } from '@aws-sdk/client-s3';
+import { GetMetadataCommand } from '../src/clients/backbeatRoutes';
+import { GetFailedObjectCommand } from '../src/clients/proxyBackbeatApis';
+import { createTestClient, testConfig } from './testSetup';
+import { describeForBackbeatSetup } from './testHelpers';
+
+const specialCharKeys = [
+    { name: 'spaces', key: 'file with spaces.txt' },
+    { name: 'parentheses', key: 'file(1).txt' },
+    { name: 'exclamation', key: 'important!.txt' },
+    { name: 'single quote', key: "it's a file.txt" },
+    { name: 'asterisk', key: 'wild*card.txt' },
+    { name: 'plus sign', key: 'a+b.txt' },
+    { name: 'multiple spaces', key: 'Screenshot from 2026-04-14 17-59-19.png' },
+    { name: 'unicode', key: 'données café.txt' },
+    { name: 'equals sign', key: 'key=value.txt' },
+    { name: 'at sign', key: 'user@domain.txt' },
+    { name: 'hash', key: 'section#1.txt' },
+    { name: 'percent literal', key: 'file%20already-encoded.txt' },
+    { name: 'mixed special chars', key: 'file (1) copy!.txt' },
+];
+
+describe('SigV4 signing with special character keys', () => {
+    const { backbeatRoutesClient, proxyBackbeatApisClient, s3client } = createTestClient();
+
+    beforeAll(async () => {
+        await Promise.all(specialCharKeys.map(({ key }) =>
+            s3client.send(new PutObjectCommand({
+                Bucket: testConfig.bucketName,
+                Key: key,
+                Body: 'test',
+            })),
+        ));
+    });
+
+    describe('BackbeatRoutesClient', () => {
+        it.each(specialCharKeys)(
+            'should not double-encode $name in path',
+            async ({ key }) => {
+                const result = await backbeatRoutesClient.send(
+                    new GetMetadataCommand({
+                        Bucket: testConfig.bucketName,
+                        Key: key,
+                    }),
+                );
+                expect(result.Body).toBeDefined();
+            },
+        );
+    });
+
+    describeForBackbeatSetup('ProxyBackbeatApisClient', () => {
+        it.each(specialCharKeys)(
+            'should not double-encode $name in path',
+            async ({ key }) => {
+                const result = await proxyBackbeatApisClient.send(
+                    new GetFailedObjectCommand({
+                        Bucket: testConfig.bucketName,
+                        Key: key,
+                        VersionId: testConfig.versionID,
+                    }),
+                );
+                expect(result.$metadata.httpStatusCode).toBe(200);
+            },
+        );
+    });
+});
diff --git a/yarn.lock b/yarn.lock
index c55b71cf..ec668cfa 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2766,12 +2766,12 @@ fast-xml-parser@5.4.1:
     fast-xml-builder "^1.0.0"
     strnum "^2.1.2"
 
-fast-xml-parser@^4.3.2:
-  version "4.5.3"
-  resolved "https://registry.yarnpkg.com/fast-xml-parser/-/fast-xml-parser-4.5.3.tgz#c54d6b35aa0f23dc1ea60b6c884340c006dc6efb"
-  integrity sha512-RKihhV+SHsIUGXObeVy9AXiBbFwkVk7Syp8XgwN5U3JV416+Gwp/GO9i0JYKmikykgz/UHRrrV4ROuZEo/T0ig==
+fast-xml-parser@^4.5.5:
+  version "4.5.6"
+  resolved "https://registry.yarnpkg.com/fast-xml-parser/-/fast-xml-parser-4.5.6.tgz#4ff57d4aca13a2d11aa42ad460495cf00f32b655"
+  integrity sha512-Yd4vkROfJf8AuJrDIVMVmYfULKmIJszVsMv7Vo71aocsKgFxpdlpSHXSaInvyYfgw2PRuObQSW2GFpVMUjxu9A==
   dependencies:
-    strnum "^1.1.1"
+    strnum "^1.0.5"
 
 fastq@^1.6.0:
   version "1.19.1"
@@ -2830,10 +2830,10 @@ flat-cache@^4.0.0:
     flatted "^3.2.9"
     keyv "^4.5.4"
 
-flatted@^3.2.9:
-  version "3.3.3"
-  resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.3.3.tgz#67c8fad95454a7c7abebf74bb78ee74a44023358"
-  integrity sha512-GX+ysw4PBCz0PzosHDepZGANEuFCMLrnRTiEy9McGjmkCQYwRq4A/X786G/fjM/+OjsWSU1ZrY5qyARZmO/uwg==
+flatted@^3.2.9, flatted@^3.4.2:
+  version "3.4.2"
+  resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.4.2.tgz#f5c23c107f0f37de8dbdf24f13722b3b98d52726"
+  integrity sha512-PjDse7RzhcPkIJwy5t7KPWQSZ9cAbzQXcafsetQoD7sOJRQlGikNbx7yZp2OotDnJyrDcbyRq3Ttb18iYOqkxA==
 
 foreground-child@^3.1.0:
   version "3.3.1"
@@ -2938,10 +2938,10 @@ graphemer@^1.4.0:
   resolved "https://registry.yarnpkg.com/graphemer/-/graphemer-1.4.0.tgz#fb2f1d55e0e3a1849aeffc90c4fa0dd53a0e66c6"
   integrity sha512-EtKwoO6kxCL9WO5xipiHTZlSzBm7WLT627TqC/uVRd0HKmq8NXyebnNYxDoBi7wt8eTWrUrKXCOVaFq9x1kgag==
 
-handlebars@^4.7.8:
-  version "4.7.8"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.8.tgz#41c42c18b1be2365439188c77c6afae71c0cd9e9"
-  integrity sha512-vafaFqs8MZkRrSX7sFVUdo3ap/eNiLnb4IakshzvP56X5Nr1iGKAIqdX6tMlm6HcNRIkr6AxO5jFEoJzzpT8aQ==
+handlebars@^4.7.9:
+  version "4.7.9"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.9.tgz#6f139082ab58dc4e5a0e51efe7db5ae890d56a0f"
+  integrity sha512-4E71E0rpOaQuJR2A3xDZ+GM1HyWYv1clR58tC8emQNeQe3RH7MAzSbat+V0wG78LQBo6m6bzSG/L4pBuCsgnUQ==
   dependencies:
     minimist "^1.2.5"
     neo-async "^2.6.2"
@@ -3939,11 +3939,16 @@ semver@^6.3.1:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.1.tgz#556d2ef8689146e46dcea4bfdd095f3434dffcb4"
   integrity sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==
 
-semver@^7.5.3, semver@^7.5.4, semver@^7.6.0, semver@^7.7.2, semver@^7.7.3:
+semver@^7.5.3, semver@^7.5.4, semver@^7.6.0, semver@^7.7.2:
   version "7.7.3"
   resolved "https://registry.yarnpkg.com/semver/-/semver-7.7.3.tgz#4b5f4143d007633a8dc671cd0a6ef9147b8bb946"
   integrity sha512-SdsKMrI9TdgjdweUSR9MweHA4EJ8YxHn8DFaDisvhVlUOe4BF1tLD7GAj0lIqWVl+dPb/rExr0Btby5loQm20Q==
 
+semver@^7.7.4:
+  version "7.7.4"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.7.4.tgz#28464e36060e991fa7a11d0279d2d3f3b57a7e8a"
+  integrity sha512-vFKC2IEtQnVhpT78h1Yp8wzwrf8CM+MzKMHGJZfBtzhZNycRFnXsHk6E5TxIkkMsgNS7mdX3AGB7x2QM2di4lA==
+
 shebang-command@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-2.0.0.tgz#ccd0af4f8835fbdc265b82461aaf0c36663f34ea"
@@ -4067,7 +4072,7 @@ strip-json-comments@^3.1.1:
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-3.1.1.tgz#31f1281b3832630434831c310c01cccda8cbe006"
   integrity sha512-6fPc+R4ihwqP6N/aIv2f1gMH8lOVtWQHoqC4yK6oSDVVocumAsfCqjkXnqiYMhmMwS/mEHLp7Vehlt3ql6lEig==
 
-strnum@^1.1.1:
+strnum@^1.0.5:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/strnum/-/strnum-1.1.2.tgz#57bca4fbaa6f271081715dbc9ed7cee5493e28e4"
   integrity sha512-vrN+B7DBIoTTZjnPNewwhx6cBA/H+IS7rfW68n7XxC1y7uoiGQBxaKzqucGUgavX15dJgiGztLJ8vxuEzwqBdA==
@@ -4142,18 +4147,18 @@ ts-api-utils@^2.1.0:
   resolved "https://registry.yarnpkg.com/ts-api-utils/-/ts-api-utils-2.1.0.tgz#595f7094e46eed364c13fd23e75f9513d29baf91"
   integrity sha512-CUgTZL1irw8u29bzrOD/nH85jqyc74D6SshFgujOIA7osm2Rz7dYH77agkx7H4FBNxDq7Cjf+IjaX/8zwFW+ZQ==
 
-ts-jest@^29.4.4:
-  version "29.4.5"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-29.4.5.tgz#a6b0dc401e521515d5342234be87f1ca96390a6f"
-  integrity sha512-HO3GyiWn2qvTQA4kTgjDcXiMwYQt68a1Y8+JuLRVpdIzm+UOLSHgl/XqR4c6nzJkq5rOkjc02O2I7P7l/Yof0Q==
+ts-jest@^29.4.9:
+  version "29.4.9"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-29.4.9.tgz#47dc33d0f5c36bddcedd16afefae285e0b049d2d"
+  integrity sha512-LTb9496gYPMCqjeDLdPrKuXtncudeV1yRZnF4Wo5l3SFi0RYEnYRNgMrFIdg+FHvfzjCyQk1cLncWVqiSX+EvQ==
   dependencies:
     bs-logger "^0.2.6"
     fast-json-stable-stringify "^2.1.0"
-    handlebars "^4.7.8"
+    handlebars "^4.7.9"
     json5 "^2.2.3"
     lodash.memoize "^4.1.2"
     make-error "^1.3.6"
-    semver "^7.7.3"
+    semver "^7.7.4"
     type-fest "^4.41.0"
     yargs-parser "^21.1.1"