Which versions of dashmap are affected by GHSA-MPG5-FVWP-42M2?

dashmap (rust) versions = 5.0.0 is affected.

Is there a fix for GHSA-MPG5-FVWP-42M2?

Yes. GHSA-MPG5-FVWP-42M2 is fixed in 5.1.0. Upgrade to this version or later.

Is GHSA-MPG5-FVWP-42M2 exploitable, and should I be worried?

Whether GHSA-MPG5-FVWP-42M2 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-MPG5-FVWP-42M2 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-MPG5-FVWP-42M2 in dashmap

Q: How do I fix GHSA-MPG5-FVWP-42M2?

Upgrade dashmap to 5.1.0 or later.

GHSA-MPG5-FVWP-42M2

GHSA-MPG5-FVWP-42M2 is a high-severity security vulnerability in dashmap (rust), affecting versions = 5.0.0. It is fixed in 5.1.0.

Does this CVE actually affect you?

Kodem shows which CVEs are reachable and running in your applications, so you fix what's exploitable, not just what's listed.

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Runtime intelligence, not another scanner.

Summary

Unsoundness in dashmap references

Reference returned by some methods of Ref (and similar types) may outlive the Ref and escape the lock.
This causes undefined behavior and may result in a segfault.

More information in dashmap#167 issue.

Impact

Affected versions

dashmap (= 5.0.0)

Security releases

dashmap → 5.1.0 (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 dashmap to 5.1.0 or later to resolve this vulnerability.

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

Frequently Asked Questions

What is GHSA-MPG5-FVWP-42M2? GHSA-MPG5-FVWP-42M2 is a high-severity security vulnerability in dashmap (rust), affecting versions = 5.0.0. It is fixed in 5.1.0.
Which versions of dashmap are affected by GHSA-MPG5-FVWP-42M2? dashmap (rust) versions = 5.0.0 is affected.
Is there a fix for GHSA-MPG5-FVWP-42M2? Yes. GHSA-MPG5-FVWP-42M2 is fixed in 5.1.0. Upgrade to this version or later.
Is GHSA-MPG5-FVWP-42M2 exploitable, and should I be worried? Whether GHSA-MPG5-FVWP-42M2 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-MPG5-FVWP-42M2 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-MPG5-FVWP-42M2? Upgrade dashmap to 5.1.0 or later.