What is GHSA-RR8G-9FPQ-6WMG?

GHSA-RR8G-9FPQ-6WMG is a low-severity security vulnerability in tokio (rust), affecting versions >= 1.44.0, < 1.44.2. It is fixed in 1.44.2, 1.38.2, 1.43.1.

Which versions of tokio are affected by GHSA-RR8G-9FPQ-6WMG?

tokio (rust) versions >= 1.44.0, < 1.44.2 is affected.

Is there a fix for GHSA-RR8G-9FPQ-6WMG?

Yes. GHSA-RR8G-9FPQ-6WMG is fixed in 1.44.2, 1.38.2, 1.43.1. Upgrade to this version or later.

Is GHSA-RR8G-9FPQ-6WMG exploitable, and should I be worried?

Whether GHSA-RR8G-9FPQ-6WMG is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

What actually determines whether GHSA-RR8G-9FPQ-6WMG is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

GHSA-RR8G-9FPQ-6WMG in tokio

Q: Which versions of tokio are affected by GHSA-RR8G-9FPQ-6WMG?

tokio (rust) versions >= 1.44.0, < 1.44.2 is affected.

Q: Is there a fix for GHSA-RR8G-9FPQ-6WMG?

Yes. GHSA-RR8G-9FPQ-6WMG is fixed in 1.44.2, 1.38.2, 1.43.1. Upgrade to this version or later.

Q: Is GHSA-RR8G-9FPQ-6WMG exploitable, and should I be worried?

Whether GHSA-RR8G-9FPQ-6WMG is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

Q: What actually determines whether GHSA-RR8G-9FPQ-6WMG is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

Q: How do I fix GHSA-RR8G-9FPQ-6WMG?

Upgrade: tokio to 1.44.2 or later, tokio to 1.38.2 or later, tokio to 1.43.1 or later.

Summary

Tokio broadcast channel calls clone in parallel, but does not require Sync

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.

Impact

Affected versions

tokio (>= 1.44.0, < 1.44.2) tokio (>= 0.2.5, < 1.38.2) tokio (>= 1.39.0, < 1.43.1)

Security releases

tokio → 1.44.2 (rust) tokio → 1.38.2 (rust) tokio → 1.43.1 (rust)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

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Remediation advice

Upgrade the following packages to resolve this vulnerability:

tokio to 1.44.2 or later; tokio to 1.38.2 or later; tokio to 1.43.1 or later

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is GHSA-RR8G-9FPQ-6WMG? GHSA-RR8G-9FPQ-6WMG is a low-severity security vulnerability in tokio (rust), affecting versions >= 1.44.0, < 1.44.2. It is fixed in 1.44.2, 1.38.2, 1.43.1.
Which versions of tokio are affected by GHSA-RR8G-9FPQ-6WMG? tokio (rust) versions >= 1.44.0, < 1.44.2 is affected.
Is there a fix for GHSA-RR8G-9FPQ-6WMG? Yes. GHSA-RR8G-9FPQ-6WMG is fixed in 1.44.2, 1.38.2, 1.43.1. Upgrade to this version or later.
Is GHSA-RR8G-9FPQ-6WMG exploitable, and should I be worried? Whether GHSA-RR8G-9FPQ-6WMG is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
What actually determines whether GHSA-RR8G-9FPQ-6WMG is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
How do I fix GHSA-RR8G-9FPQ-6WMG?
- Upgrade tokio to 1.44.2 or later
- Upgrade tokio to 1.38.2 or later
- Upgrade tokio to 1.43.1 or later

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