netfoil: Incorrect block responses could lead to localhost traffic
Priority LOW 38CWE-693Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-693.
Summary
### Summary `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.
Why it matters now
Fix Fixed github.com/tinfoil-factory/netfoil (Go): 0.4.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | github.com/tinfoil-factory/netfoil (Go) | before 0.4.0 | 0.4.0 | Patch available | GHSA-xvg2-cgv6-6h7v |
- github.com/tinfoil-factory/netfoil (Go) Vendor— Affected before 0.4.0 Fixed in 0.4.0 Patch available GHSA-xvg2-cgv6-6h7v
Remediation
- Fix · GHSA-xvg2-cgv6-6h7v github.com/tinfoil-factory/netfoil (Go) Fixed in 0.4.0 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-xvg2-cgv6-6h7v
References
Other 5
- https://github.com/tinfoil-factory/netfoil/security/advisories/GHSA-xvg2-cgv6-6h7v
- https://github.com/tinfoil-factory/netfoil/pull/33
- https://github.com/tinfoil-factory/netfoil/commit/891d3513c77999a9deef9f23506807d9653ee448
- https://github.com/tinfoil-factory/netfoil
- https://github.com/tinfoil-factory/netfoil/releases/tag/v0.4.0
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences