# CVE-2023-22466: rust-tokio: Tokio is a runtime for writing applications with Rust

CVE-2023-22466 is fixed in rust-tokio on 1 platform, first by DEBIAN-CVE-2023-22466, released January 4, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-22466
- Priority: Routine
- CVSS: 5.4 (medium)
- EPSS: 0.0061
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 4, 2023

## Description

Tokio is a runtime for writing applications with Rust. Starting with version 1.7.0 and prior to versions 1.18.4, 1.20.3, and 1.23.1, when configuring a Windows named pipe server, setting `pipe_mode` will reset `reject_remote_clients` to `false`. If the application has previously configured `reject_remote_clients` to `true`, this effectively undoes the configuration. Remote clients may only access the named pipe if the named pipe's associated path is accessible via a publicly shared folder (SMB). Versions 1.23.1, 1.20.3, and 1.18.4 have been patched. The fix will also be present in all releases starting from version 1.24.0. Named pipes were introduced to Tokio in version 1.7.0, so releases older than 1.7.0 are not affected. As a workaround, ensure that `pipe_mode` is set first after initializing a `ServerOptions`.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | rust-tokio Debian 12.15 (bookworm) | 1.24.2-1 | [DEBIAN-CVE-2023-22466](https://patchblox.com/security/data/fix/linux/debian-cve-2023-22466.md) | Jan 4, 2023 |
| Linux | rust-tokio Debian 13.5 (trixie) | 1.24.2-1 | [DEBIAN-CVE-2023-22466](https://patchblox.com/security/data/fix/linux/debian-cve-2023-22466.md) | Jan 4, 2023 |
| Linux | rust-tokio Debian 14 | 1.24.2-1 | [DEBIAN-CVE-2023-22466](https://patchblox.com/security/data/fix/linux/debian-cve-2023-22466.md) | Jan 4, 2023 |

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Data as of 2026-11-09T19:38:12Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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