Summary
Maligned causes incorrect deallocation
maligned::align_first manually allocates with an alignment larger than T, and then uses Vec::from_raw_parts on that allocation to get a Vec<T>.
GlobalAlloc::dealloc requires that the layout argument must be the same layout that was used to allocate that block of memory.
When deallocating, Box and Vec may not respect the specified alignment and can cause undefined behavior.
Impact
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-WM8X-PHP5-HVQ6? GHSA-WM8X-PHP5-HVQ6 is a medium-severity security vulnerability in maligned (rust), affecting versions <= 0.2.1. No fixed version is listed yet.
- Which versions of maligned are affected by GHSA-WM8X-PHP5-HVQ6? maligned (rust) versions <= 0.2.1 is affected.
- Is there a fix for GHSA-WM8X-PHP5-HVQ6? No fixed version is listed for GHSA-WM8X-PHP5-HVQ6 yet. Monitor the advisory for updates and apply mitigations in the interim.
- Is GHSA-WM8X-PHP5-HVQ6 exploitable, and should I be worried? Whether GHSA-WM8X-PHP5-HVQ6 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-WM8X-PHP5-HVQ6 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.