Summary
IterMut violates Stacked Borrows by invalidating internal pointer
Affected versions of this crate contain a soundness issue in the IterMut iterator implementation. The IterMut::next and IterMut::next_back methods temporarily create an exclusive reference to the key when dereferencing the internal node pointer.
This invalidates the shared pointer held by the internal HashMap, violating Stacked Borrows rules.
Impact
The application dereferences a null pointer, causing a crash. Typical impact: denial of service via crash.
Affected versions
Security releases
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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Frequently Asked Questions
- What is GHSA-RHFX-M35P-FF5J? GHSA-RHFX-M35P-FF5J is a low-severity null pointer dereference vulnerability in lru (rust), affecting versions >= 0.9.0, < 0.16.3. It is fixed in 0.16.3. The application dereferences a null pointer, causing a crash.
- Which versions of lru are affected by GHSA-RHFX-M35P-FF5J? lru (rust) versions >= 0.9.0, < 0.16.3 is affected.
- Is there a fix for GHSA-RHFX-M35P-FF5J? Yes. GHSA-RHFX-M35P-FF5J is fixed in 0.16.3. Upgrade to this version or later.
- Is GHSA-RHFX-M35P-FF5J exploitable, and should I be worried? Whether GHSA-RHFX-M35P-FF5J 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-RHFX-M35P-FF5J 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-RHFX-M35P-FF5J? Upgrade
lruto 0.16.3 or later.