GHSA-rr8g-9fpq-6wmg

Suggest an improvement
Source
https://github.com/advisories/GHSA-rr8g-9fpq-6wmg
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-rr8g-9fpq-6wmg/GHSA-rr8g-9fpq-6wmg.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-rr8g-9fpq-6wmg
Aliases
Related
Published
2025-04-07T21:12:50Z
Modified
2025-10-28T06:29:26.130595Z
Severity
  • 2.7 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U CVSS Calculator
Summary
Tokio broadcast channel calls clone in parallel, but does not require `Sync`
Details

The broadcast channel internally calls clone on the stored value when receiving it, and only requires T:Send. This means that using the broadcast channel with values that are Send but not Sync can trigger unsoundness if the clone implementation makes use of the value being !Sync.

Thank you to Austin Bonander for finding and reporting this issue.

Database specific 
{
    "severity": "LOW",
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-664"
    ],
    "nvd_published_at": null,
    "github_reviewed_at": "2025-04-07T21:12:50Z"
}
References

Affected packages

crates.io / tokio

Package

Name
tokio
View open source insights on deps.dev
Purl
pkg:cargo/tokio

Affected ranges

Type
SEMVER
Events
Introduced
1.44.0
Fixed
1.44.2

crates.io / tokio

Package

Name
tokio
View open source insights on deps.dev
Purl
pkg:cargo/tokio

Affected ranges

Type
SEMVER
Events
Introduced
0.2.5
Fixed
1.38.2

crates.io / tokio

Package

Name
tokio
View open source insights on deps.dev
Purl
pkg:cargo/tokio

Affected ranges

Type
SEMVER
Events
Introduced
1.39.0
Fixed
1.43.1