CVE-2023-22466

MEDIUM

Tokio <1.18.4, 1.20.3, 1.23.1 - Info Disclosure

Title source: llm
STIX 2.1

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`.

References (4)

Core 4
Core References
Mitigation, Third Party Advisory x_refsource_confirm
https://github.com/tokio-rs/tokio/security/advisories/GHSA-7rrj-xr53-82p7
Patch, Third Party Advisory x_refsource_misc
https://github.com/tokio-rs/tokio/pull/5336
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/tokio-rs/tokio/releases/tag/tokio-1.23.1

Scores

CVSS v3 5.4
EPSS 0.0056
EPSS Percentile 42.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-665
Status published
Products (2)
crates.io/tokio 1.7.0 - 1.18.4crates.io
tokio/tokio 1.7.0 - 1.18.4
Published Jan 04, 2023
Tracked Since Feb 18, 2026