Summary
'Read' on uninitialized memory may cause UB
Affected versions of this crate passes an uninitialized buffer to a user-provided Read implementation. The crate currently contains 4 occurrences of such cases. Arbitrary Read implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer.
Reading from uninitialized memory produces undefined values that can quickly invoke 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-C6PX-4GRW-HRJR? GHSA-C6PX-4GRW-HRJR is a high-severity security vulnerability in binjs_io (rust), affecting versions <= 0.2.1. No fixed version is listed yet.
- Which versions of binjs_io are affected by GHSA-C6PX-4GRW-HRJR? binjs_io (rust) versions <= 0.2.1 is affected.
- Is there a fix for GHSA-C6PX-4GRW-HRJR? No fixed version is listed for GHSA-C6PX-4GRW-HRJR yet. Monitor the advisory for updates and apply mitigations in the interim.
- Is GHSA-C6PX-4GRW-HRJR exploitable, and should I be worried? Whether GHSA-C6PX-4GRW-HRJR 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-C6PX-4GRW-HRJR 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.