Vulnerability Description
Fullchain is an umbrella project for deploying a ready-to-use CTF platform. In versions prior to 0.1.1, due to a mis-written NetworkPolicy, a malicious actor can pivot from a subverted application to any Pod out of the origin namespace. The flawed inter-ns NetworkPolicy breaks the security-by-default property expected as part of the deployment program, leading to a potential lateral movement. This issue has been fixed in version 0.1.1. To workaround, delete the failing network policy that should be prefixed by inter-ns- in the target namespace.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ctfer | Fullchain | < 0.1.1 |
Related Weaknesses (CWE)
References
- https://github.com/ctfer-io/fullchain/commit/dbcb90178bcb07a3f5a1efa4c6350f3a6cePatch
- https://github.com/ctfer-io/fullchain/releases/tag/v0.1.1Release Notes
- https://github.com/ctfer-io/fullchain/security/advisories/GHSA-hxm7-9q36-c77fExploitVendor Advisory
FAQ
What is CVE-2026-32769?
CVE-2026-32769 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Fullchain is an umbrella project for deploying a ready-to-use CTF platform. In versions prior to 0.1.1, due to a mis-written NetworkPolicy, a malicious actor can pivot from a subverted application to...
How severe is CVE-2026-32769?
CVE-2026-32769 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-32769?
Check the references section above for vendor advisories and patch information. Affected products include: Ctfer Fullchain.