RUSTSEC-2023-0001 (CVE-2023-22466)
Vulnerability from osv_rustsec – Published: 2023-01-04 12:00 – Updated: 2026-10-12 17:47 – Source websiteOn Windows, configuring a named pipe server with pipe_mode will force ServerOptions::reject_remote_clients as false.
This drops any intended explicit configuration for the reject_remote_clients that may have been set as true previously.
The default setting of reject_remote_clients is normally true meaning the default is also overridden as false.
Workarounds
Ensure that pipe_mode is set first after initializing a ServerOptions. For example:
let mut opts = ServerOptions::new();
opts.pipe_mode(PipeMode::Message);
opts.reject_remote_clients(true);
{
"affected": [
{
"database_specific": {
"categories": [],
"cvss": null,
"informational": null
},
"ecosystem_specific": {
"affected_functions": null,
"affects": {
"arch": [],
"functions": [],
"os": [
"windows"
]
}
},
"package": {
"ecosystem": "crates.io",
"name": "tokio",
"purl": "pkg:cargo/tokio"
},
"ranges": [
{
"events": [
{
"introduced": "1.7.0"
},
{
"fixed": "1.18.4"
},
{
"introduced": "1.19.0"
},
{
"fixed": "1.20.3"
},
{
"introduced": "1.21.0"
},
{
"fixed": "1.23.1"
}
],
"type": "SEMVER"
}
],
"versions": []
}
],
"aliases": [
"CVE-2023-22466",
"GHSA-7rrj-xr53-82p7"
],
"database_specific": {
"license": "CC0-1.0"
},
"details": "On Windows, configuring a named pipe server with [pipe_mode] will force [ServerOptions]::[reject_remote_clients] as `false`.\n\nThis drops any intended explicit configuration for the [reject_remote_clients] that may have been set as `true` previously.\n\nThe default setting of [reject_remote_clients] is normally `true` meaning the default is also overridden as `false`.\n\n## Workarounds\n\nEnsure that [pipe_mode] is set first after initializing a [ServerOptions]. For example:\n\n```rust\nlet mut opts = ServerOptions::new();\nopts.pipe_mode(PipeMode::Message);\nopts.reject_remote_clients(true);\n```\n\n[ServerOptions]: https://docs.rs/tokio/latest/tokio/net/windows/named_pipe/struct.ServerOptions.html\n[pipe_mode]: https://docs.rs/tokio/latest/tokio/net/windows/named_pipe/struct.ServerOptions.html#method.pipe_mode\n[reject_remote_clients]: https://docs.rs/tokio/latest/tokio/net/windows/named_pipe/struct.ServerOptions.html#method.reject_remote_clients",
"id": "RUSTSEC-2023-0001",
"modified": "2026-10-12T17:47:59Z",
"published": "2023-01-04T12:00:00Z",
"references": [
{
"type": "PACKAGE",
"url": "https://crates.io/crates/tokio"
},
{
"type": "ADVISORY",
"url": "https://rustsec.org/advisories/RUSTSEC-2023-0001.html"
},
{
"type": "WEB",
"url": "https://github.com/tokio-rs/tokio/pull/5336"
},
{
"type": "WEB",
"url": "https://github.com/tokio-rs/tokio/pull/5336"
},
{
"type": "WEB",
"url": "https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-createnamedpipea#pipe_reject_remote_clients"
}
],
"related": [],
"severity": [],
"summary": "reject_remote_clients Configuration corruption"
}
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