Summary
Storage corruption due to variables overwritten by re-entrancy locks
Background
When attempting to use the v0.2.14 release, @pandadefi discovered an issue using the @nonreentrant decorator.
Workarounds
Don't use the @nonreentrant decorator in these versions.
Impact
Reentrancy protection storage slots get allocated to the same slots as storage variables, leading to the corruption of storage variables when using the @nonreentrant decorator.
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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This issue was fixed in v0.2.15 in #2391, #2379
Frequently Asked Questions
- What is GHSA-7F92-RR6W-CQ64? GHSA-7F92-RR6W-CQ64 is a high-severity security vulnerability in vyper (pip), affecting versions >= 0.2.13, < 0.2.15. It is fixed in 0.2.15.
- Which versions of vyper are affected by GHSA-7F92-RR6W-CQ64? vyper (pip) versions >= 0.2.13, < 0.2.15 is affected.
- Is there a fix for GHSA-7F92-RR6W-CQ64? Yes. GHSA-7F92-RR6W-CQ64 is fixed in 0.2.15. Upgrade to this version or later.
- Is GHSA-7F92-RR6W-CQ64 exploitable, and should I be worried? Whether GHSA-7F92-RR6W-CQ64 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-7F92-RR6W-CQ64 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-7F92-RR6W-CQ64? Upgrade
vyperto 0.2.15 or later.