From 649ed31aa78cf0bbe116d13db6c0b514a26c1b35 Mon Sep 17 00:00:00 2001
From: Simonas Kazlauskas <git@kazlauskas.me>
Date: Sat, 20 Jun 2026 16:11:51 +0300
Subject: [PATCH] enable rocket/mtls feature

I want this (mTLS) for the communication between my vaultwarden and the
reverse proxy that's fronting vaultwarden. For various reasons my
reverse proxy is hosted on a different machine within the same LAN than
vaultwarden and I don't want to put another reverse proxy on the machine
with vaultwarden just for this.

Once vaultwarden is built with rocket/mtls enabled, mTLS seems to be
working. I used the following steps/commands to verify this works:

```bash
$ openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
  -subj "/CN=Test-Local-CA" \
  -keyout ca.key -out ca.crt
$ openssl req -nodes -newkey rsa:2048 \
  -subj "/CN=localhost" \
  -keyout server.key -out server.csr
$ openssl x509 -req -days 365 -in server.csr \
  -CA ca.crt -CAkey ca.key -CAcreateserial \
  -extfile <(printf "subjectAltName=DNS:localhost,IP:127.0.0.1\nextendedKeyUsage=serverAuth") \
  -out server.crt
$ openssl req -nodes -newkey rsa:2048 \
  -subj "/CN=test-client" \
  -keyout client.key -out client.csr
$ openssl x509 -req -days 365 -in client.csr \
  -CA ca.crt -CAkey ca.key \
  -extfile <(printf "extendedKeyUsage=clientAuth") \
  -out client.crt
$ env WEB_VAULT_ENABLED=false \
  ROCKET_TLS='{certs="server.crt", key="server.key", mutual={ca_certs="ca.crt",mandatory=true}} \
  ./target/debug/vaultwarden
$ curl --cert client.crt --key client.key --cacert ca.crt https://localhost:8000/admin
The admin panel is disabled, please configure the 'ADMIN_TOKEN' variable to enable it
$ curl --cacert ca.crt https://localhost:8000/admin
curl: (56) OpenSSL SSL_read: OpenSSL/3.6.2: error:0A00045C:SSL routines::tlsv13 alert certificate required, errno 0
$ curl -k http://localhost:8000/admin
curl: (1) Received HTTP/0.9 when not allowed
```

The downside here is that `rocket` seems to be pulling a relatively old
version of `x509-parser` crate, and so there are significant new
duplicate crates, including return of the syn 1.0 series. However I'm
not sure how fixable this is, given the maintenance status of the rocket
framework.
---
 Cargo.lock | 240 ++++++++++++++++++++++++++++++++++++++---------------
 Cargo.toml |   2 +-
 2 files changed, 176 insertions(+), 66 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 2826b092..27696f3f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -97,14 +97,30 @@ dependencies = [
  "password-hash",
 ]
 
+[[package]]
+name = "asn1-rs"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "30ff05a702273012438132f449575dbc804e27b2f3cbe3069aa237d26c98fa33"
+dependencies = [
+ "asn1-rs-derive 0.1.0",
+ "asn1-rs-impl 0.1.0",
+ "displaydoc",
+ "nom 7.1.3",
+ "num-traits",
+ "rusticata-macros",
+ "thiserror 1.0.69",
+ "time",
+]
+
 [[package]]
 name = "asn1-rs"
 version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5493c3bedbacf7fd7382c6346bbd66687d12bbaad3a89a2d2c303ee6cf20b048"
 dependencies = [
- "asn1-rs-derive",
- "asn1-rs-impl",
+ "asn1-rs-derive 0.5.1",
+ "asn1-rs-impl 0.2.0",
  "displaydoc",
  "nom 7.1.3",
  "num-traits",
@@ -113,6 +129,18 @@ dependencies = [
  "time",
 ]
 
+[[package]]
+name = "asn1-rs-derive"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db8b7511298d5b7784b40b092d9e9dcd3a627a5707e4b5e507931ab0d44eeebf"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+ "synstructure 0.12.6",
+]
+
 [[package]]
 name = "asn1-rs-derive"
 version = "0.5.1"
@@ -121,8 +149,19 @@ checksum = "965c2d33e53cb6b267e148a4cb0760bc01f4904c1cd4bb4002a085bb016d1490"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
- "synstructure",
+ "syn 2.0.117",
+ "synstructure 0.13.2",
+]
+
+[[package]]
+name = "asn1-rs-impl"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2777730b2039ac0f95f093556e61b6d26cebed5393ca6f152717777cec3a42ed"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -133,7 +172,7 @@ checksum = "7b18050c2cd6fe86c3a76584ef5e0baf286d038cda203eb6223df2cc413565f7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -311,7 +350,7 @@ checksum = "c7c24de15d275a1ecfd47a380fb4d5ec9bfe0933f309ed5e705b775596a3574d"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -328,7 +367,7 @@ checksum = "9035ad2d096bed7955a320ee7e2230574d28fd3c3a0f186cbea1ff3c7eed5dbb"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -637,7 +676,7 @@ checksum = "8d7396fd9500589e62e460e987ecb671bad374934e55ec3b5f498cc7a8a8a7b7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -704,6 +743,12 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
 
+[[package]]
+name = "base64"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
+
 [[package]]
 name = "base64"
 version = "0.21.7"
@@ -906,7 +951,7 @@ dependencies = [
  "darling 0.20.11",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1281,7 +1326,7 @@ checksum = "f46882e17999c6cc590af592290432be3bce0428cb0d5f8b6715e4dc7b383eb3"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1325,7 +1370,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "strsim",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1339,7 +1384,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "strsim",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1352,7 +1397,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "strsim",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1363,7 +1408,7 @@ checksum = "fc34b93ccb385b40dc71c6fceac4b2ad23662c7eeb248cf10d529b7e055b6ead"
 dependencies = [
  "darling_core 0.20.11",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1374,7 +1419,7 @@ checksum = "d38308df82d1080de0afee5d069fa14b0326a88c14f15c5ccda35b4a6c414c81"
 dependencies = [
  "darling_core 0.21.3",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1385,7 +1430,7 @@ checksum = "ac3984ec7bd6cfa798e62b4a642426a5be0e68f9401cfc2a01e3fa9ea2fcdb8d"
 dependencies = [
  "darling_core 0.23.0",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1425,13 +1470,27 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "der-parser"
+version = "7.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe398ac75057914d7d07307bf67dc7f3f574a26783b4fc7805a20ffa9f506e82"
+dependencies = [
+ "asn1-rs 0.3.1",
+ "displaydoc",
+ "nom 7.1.3",
+ "num-bigint",
+ "num-traits",
+ "rusticata-macros",
+]
+
 [[package]]
 name = "der-parser"
 version = "9.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5cd0a5c643689626bec213c4d8bd4d96acc8ffdb4ad4bb6bc16abf27d5f4b553"
 dependencies = [
- "asn1-rs",
+ "asn1-rs 0.6.2",
  "displaydoc",
  "nom 7.1.3",
  "num-bigint",
@@ -1467,7 +1526,7 @@ dependencies = [
  "darling 0.20.11",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1477,7 +1536,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab63b0e2bf4d5928aff72e83a7dace85d7bba5fe12dcc3c5a572d78caffd3f3c"
 dependencies = [
  "derive_builder_core",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1499,7 +1558,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rustc_version",
- "syn",
+ "syn 2.0.117",
  "unicode-xid",
 ]
 
@@ -1533,7 +1592,7 @@ dependencies = [
  "proc-macro2",
  "proc-macro2-diagnostics",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1570,7 +1629,7 @@ checksum = "d5adf688c584fe33726ce0e2898f608a2a92578ac94a4a92fcecf73214fe0716"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1583,7 +1642,7 @@ dependencies = [
  "dsl_auto_type",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1603,7 +1662,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fe2444076b48641147115697648dc743c2c00b61adade0f01ce67133c7babe8c"
 dependencies = [
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1638,7 +1697,7 @@ checksum = "1ac70aa55017e108007fbaf5aa0f54b021c98f92ff8af59d42eda9da96e3dd4f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -1682,7 +1741,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -2002,7 +2061,7 @@ checksum = "e835b70203e41293343137df5c0664546da5745f82ec9b84d40be8336958447b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -2811,7 +2870,7 @@ checksum = "782d32378dddf207193ac91cefb848ad41abb58195c95168e1291227a0832b47"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -2856,7 +2915,7 @@ dependencies = [
  "quote",
  "rustc_version",
  "simd_cesu8",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -2875,7 +2934,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "38c0b942f458fe50cdac086d2f946512305e5631e720728f2a61aabcd47a6264"
 dependencies = [
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -3087,7 +3146,7 @@ name = "macros"
 version = "0.1.0"
 dependencies = [
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -3317,7 +3376,7 @@ checksum = "ed3955f1a9c7c0c15e092f9c887db08b1fc683305fdf6eb6684f22555355e202"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -3403,13 +3462,22 @@ dependencies = [
  "url",
 ]
 
+[[package]]
+name = "oid-registry"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "38e20717fa0541f39bd146692035c37bedfa532b3e5071b35761082407546b2a"
+dependencies = [
+ "asn1-rs 0.3.1",
+]
+
 [[package]]
 name = "oid-registry"
 version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8d8034d9489cdaf79228eb9f6a3b8d7bb32ba00d6645ebd48eef4077ceb5bd9"
 dependencies = [
- "asn1-rs",
+ "asn1-rs 0.6.2",
 ]
 
 [[package]]
@@ -3549,7 +3617,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -3711,7 +3779,7 @@ dependencies = [
  "proc-macro2",
  "proc-macro2-diagnostics",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -3769,7 +3837,7 @@ dependencies = [
  "pest_meta",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -3821,7 +3889,7 @@ dependencies = [
  "phf_shared 0.11.3",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -3997,7 +4065,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "479ca8adacdd7ce8f1fb39ce9ecccbfe93a3f1344b3d0d97f20bc0196208f62b"
 dependencies = [
  "proc-macro2",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -4026,7 +4094,7 @@ checksum = "af066a9c399a26e020ada66a034357a868728e72cd426f3adcd35f80d88d88c8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
  "version_check",
  "yansi",
 ]
@@ -4237,7 +4305,7 @@ checksum = "b7186006dcb21920990093f30e3dea63b7d6e977bf1256be20c3563a5db070da"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -4488,7 +4556,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rocket_http",
- "syn",
+ "syn 2.0.117",
  "unicode-xid",
  "version_check",
 ]
@@ -4521,6 +4589,7 @@ dependencies = [
  "tokio",
  "tokio-rustls 0.24.1",
  "uncased",
+ "x509-parser 0.13.2",
 ]
 
 [[package]]
@@ -4926,7 +4995,7 @@ checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -5021,7 +5090,7 @@ dependencies = [
  "darling 0.23.0",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -5271,6 +5340,17 @@ dependencies = [
  "xml",
 ]
 
+[[package]]
+name = "syn"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "syn"
 version = "2.0.117"
@@ -5291,6 +5371,18 @@ dependencies = [
  "futures-core",
 ]
 
+[[package]]
+name = "synstructure"
+version = "0.12.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f36bdaa60a83aca3921b5259d5400cbf5e90fc51931376a9bd4a0eb79aa7210f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+ "unicode-xid",
+]
+
 [[package]]
 name = "synstructure"
 version = "0.13.2"
@@ -5299,7 +5391,7 @@ checksum = "728a70f3dbaf5bab7f0c4b1ac8d7ae5ea60a4b5549c8a5914361c99147a709d2"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -5380,7 +5472,7 @@ checksum = "4fee6c4efc90059e10f81e6d42c60a18f76588c3d74cb83a0b242a2b6c7504c1"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -5391,7 +5483,7 @@ checksum = "ebc4ee7f67670e9b64d05fa4253e753e016c6c95ff35b89b7941d6b856dec1d5"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -5504,7 +5596,7 @@ checksum = "385a6cb71ab9ab790c5fe8d67f1645e6c450a7ce006a33de03daa956cf70a496"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -5718,7 +5810,7 @@ checksum = "7490cfa5ec963746568740651ac6781f701c9c5ea257c58e057f3ba8cf69e8da"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -6077,7 +6169,7 @@ dependencies = [
  "bumpalo",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
  "wasm-bindgen-shared",
 ]
 
@@ -6193,7 +6285,7 @@ checksum = "296d2d501feb715d80b8e186fb88bab1073bca17f460303a1013d17b673bea6a"
 dependencies = [
  "base64 0.21.7",
  "base64urlsafedata",
- "der-parser",
+ "der-parser 9.0.0",
  "hex",
  "nom 7.1.3",
  "openssl",
@@ -6209,7 +6301,7 @@ dependencies = [
  "uuid",
  "webauthn-attestation-ca",
  "webauthn-rs-proto",
- "x509-parser",
+ "x509-parser 0.16.0",
 ]
 
 [[package]]
@@ -6310,7 +6402,7 @@ checksum = "053e2e040ab57b9dc951b72c264860db7eb3b0200ba345b4e4c3b14f67855ddf"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -6321,7 +6413,7 @@ checksum = "3f316c4a2570ba26bbec722032c4099d8c8bc095efccdc15688708623367e358"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -6567,7 +6659,7 @@ dependencies = [
  "heck",
  "indexmap 2.14.0",
  "prettyplease",
- "syn",
+ "syn 2.0.117",
  "wasm-metadata",
  "wit-bindgen-core",
  "wit-component",
@@ -6583,7 +6675,7 @@ dependencies = [
  "prettyplease",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
  "wit-bindgen-core",
  "wit-bindgen-rust",
 ]
@@ -6631,18 +6723,36 @@ version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ffae5123b2d3fc086436f8834ae3ab053a283cfac8fe0a0b8eaae044768a4c4"
 
+[[package]]
+name = "x509-parser"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9fb9bace5b5589ffead1afb76e43e34cff39cd0f3ce7e170ae0c29e53b88eb1c"
+dependencies = [
+ "asn1-rs 0.3.1",
+ "base64 0.13.1",
+ "data-encoding",
+ "der-parser 7.0.0",
+ "lazy_static",
+ "nom 7.1.3",
+ "oid-registry 0.4.0",
+ "rusticata-macros",
+ "thiserror 1.0.69",
+ "time",
+]
+
 [[package]]
 name = "x509-parser"
 version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fcbc162f30700d6f3f82a24bf7cc62ffe7caea42c0b2cba8bf7f3ae50cf51f69"
 dependencies = [
- "asn1-rs",
+ "asn1-rs 0.6.2",
  "data-encoding",
- "der-parser",
+ "der-parser 9.0.0",
  "lazy_static",
  "nom 7.1.3",
- "oid-registry",
+ "oid-registry 0.7.1",
  "rusticata-macros",
  "thiserror 1.0.69",
  "time",
@@ -6698,8 +6808,8 @@ checksum = "de844c262c8848816172cef550288e7dc6c7b7814b4ee56b3e1553f275f1858e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
- "synstructure",
+ "syn 2.0.117",
+ "synstructure 0.13.2",
 ]
 
 [[package]]
@@ -6735,7 +6845,7 @@ checksum = "0b631b19d36a892ab55420c92dbc83ccd79274f25be714855d3074aa71cab639"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -6755,8 +6865,8 @@ checksum = "11532158c46691caf0f2593ea8358fed6bbf68a0315e80aae9bd41fbade684a1"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
- "synstructure",
+ "syn 2.0.117",
+ "synstructure 0.13.2",
 ]
 
 [[package]]
@@ -6776,7 +6886,7 @@ checksum = "85a5b4158499876c763cb03bc4e49185d3cccbabb15b33c627f7884f43db852e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
@@ -6809,7 +6919,7 @@ checksum = "625dc425cab0dca6dc3c3319506e6593dcb08a9f387ea3b284dbd52a92c40555"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.117",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 47c17f59..d918a140 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -79,7 +79,7 @@ num-derive = "0.4.2"
 bigdecimal = "0.4.10"
 
 # Web framework
-rocket = { version = "0.5.1", default-features = false, features = ["json", "tls"] }
+rocket = { version = "0.5.1", default-features = false, features = ["json", "tls", "mtls"] }
 rocket_ws = { version = "0.1.1" }
 
 # WebSockets libraries