Summary
netfoil: Incorrect block responses could lead to localhost traffic
0.0.0.0 was used instead of NXDOMAIN for block responses. On Linux, which is the target platform for netfoil, the 0.0.0.0 is sent to localhost rather than just dropped.
Impact
Unintended traffic could be sent to localhost. Impact depends on running services and firewall rules.
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-XVG2-CGV6-6H7V? GHSA-XVG2-CGV6-6H7V is a high-severity security vulnerability in github.com/tinfoil-factory/netfoil (go), affecting versions < 0.4.0. It is fixed in 0.4.0.
- Which versions of github.com/tinfoil-factory/netfoil are affected by GHSA-XVG2-CGV6-6H7V? github.com/tinfoil-factory/netfoil (go) versions < 0.4.0 is affected.
- Is there a fix for GHSA-XVG2-CGV6-6H7V? Yes. GHSA-XVG2-CGV6-6H7V is fixed in 0.4.0. Upgrade to this version or later.
- Is GHSA-XVG2-CGV6-6H7V exploitable, and should I be worried? Whether GHSA-XVG2-CGV6-6H7V 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-XVG2-CGV6-6H7V 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-XVG2-CGV6-6H7V? Upgrade
github.com/tinfoil-factory/netfoilto 0.4.0 or later.