CVE-2026-32769 Details
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.
A vulnerability in the Fullchain CTF platform, in versions prior to 0.1.1, allows a malicious actor to pivot from a compromised application to any Pod in a different namespace. This issue arises from a misconfigured NetworkPolicy that fails to enforce proper isolation between namespaces, breaking the expected security defaults and potentially enabling lateral movement within the cluster.
To address this vulnerability, delete the incorrect 'inter-ns' NetworkPolicy in the affected namespace. This can be done manually or with a provided script that removes all matching NetworkPolicies. After deleting the problematic policy, update to Fullchain version 0.1.1 as soon as possible.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 20, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
| CWE-284 | Improper Access Control | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ctfer fullchain | < 0.1.1 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 16, 2026 | Initial Analysis | [email protected] |
| Mar 20, 2026 | New CVE Received | [email protected] |